Leonardo (Teenage Mutant Ninja Turtles) 2012 animated series What is Leonardo's personality? Leonardo seems to be more experienced and still perfecting his fighting skills and leadership abilities to make more solid decisions Is Leonardo the leader? Leonardo again leads the team Is Leonardo a commanding leader? Leonardo seems to be more experienced and still perfecting his fighting skills and leadership abilities Is the Ambush Clan a threat? I don't know. I meant, is the Foot Clan a threat? I don't know.
Is the Shredder a threat?
Is the Shredder a threat in the 2012 animated series of Teenage Mutant Ninja Turtles??
Leonardo again leads the team in Nickelodeon's 3D computer-animated series. He was voiced by actor Jason Biggs up until "The Wrath of Tiger Claw", Dominic Catrambone for the remainder of the second season and Seth Green beginning in the third season. In this latest version, Leonardo seems to be more experienced and still perfecting his fighting skills and leadership abilities to make more solid decisions and gain more trust from his three younger brothers. He regularly watches an animated science fiction show called Space Heroes (a parody of Star Trek: The Animated Series) and uses it as a guide for his leadership skills, often attempting to quote from the show in an attempt to sound intimidating and heroic, even if most of his attempts fall flat due to him sounding overly cliche.  Leonardo immediately developed romantic feelings for Karai since their first encounter, even though she is his adoptive sister by Splinter; she was taken in by the Shredder after her mother's death and was tasked with destroying her birth family (including Leo) before changing sides upon discovering her true heritage as his adopted sister. His weapons here are purely dual katanas, which he uses in the Niten Ryu style of kenjutsu, making him an excellent swordsman. Despite the fact the other three turtles have added traits in this series, Leonardo is almost completely normal but now has blue eyes. Upon the sudden demise of his adopted father and master, he reluctantly steps up as sensei in addition to being leader, which puts even more pressure on him. He is visited, on occasion, by the spirit of Splinter who encourages him to lead his family and friends to stopping new evils.  In addition to his natural ninjitsu skills, he eventually developed the strong innate ability to heal via an enchanted mantra known as "the healing hands." By chanting the incantation and making the right hand seals, Leo is fully capable of revitalizing his inner strength and counteract even the most lethal of poisons and venom of "the healing hands." He managed to develop and utilize it to counteract the lethal venom of Karai, and attempted to use it on her to release her from the Shredder's control but failed. He then succeeded in saving Casey and Michelangelo from death. According to Splinter, he shows great gifts as a healer, and that being at the edge of his life had given him "a power that few martial artists can tap." CANNOTANSWER
Leonardo immediately developed romantic feelings for Karai since their first encounter, even though she is his adoptive sister by Splinter; she was taken in by the Shredder
Leonardo, nicknamed Leo, is a fictional superhero and one of the four main characters in the Teenage Mutant Ninja Turtles comics and related media. He is the oldest of his four brothers, as well as their commander and tactical advisor.

He is often depicted wearing a blue bandanna. His signature weapons are two ninjatō, commonly confused as katana. Leonardo is the eldest brother and the leader of the group. He is the most skilled, the most serious, the most spiritual, the most mature, the most disciplined and the most in-line with Splinter's teachings and thoughts. Like all of the brothers, he is named after an Italian Renaissance artist, in this case Leonardo da Vinci. Leonardo da Vinci is widely considered the most diversely skilled individual of the Renaissance period, and as such Leonardo is also considered the most diversely skilled ninja turtle. In the Mirage comics, all four of the Turtles wear red masks, but for the creators to tell them apart, he was written and redrawn to have an ocean-blue mask.

Comics

Mirage
Leonardo is depicted as the main protagonist of the turtles. He never explicitly referred to himself as leader in the early stories, except in issue #44 ("The Violent Underground"). He is the one to usually take charge of the turtles when Master Splinter is not present. He is often at odds with his more hot-headed younger brother Raphael.

In Leonardo #1, Leonardo goes out for a run on the rooftops of New York City and is ambushed by the Foot Clan. He puts up an admirable fight against an army of Foot Ninja, but is eventually overwhelmed. Beaten to near unconsciousness, he is thrown through April O'Neil's apartment window. The remaining Turtles and Splinter are forced to continue the fight, but even with the aid of Casey Jones, the odds are against them. In the end, the building catches fire and the police arrive, but they secretly escape to Northampton. During this time, Leonardo recovers from his physical wounds. However, he lost a great deal of confidence. He repeatedly attempts, unsuccessfully, to hunt for deer. While out hunting, he sees April fall through ice into a lake, and he rescues her. In subsequent issues, it is implied that Leonardo has regained most of his confidence.

In the Return to New York storyline (Teenage Mutant Ninja Turtles (vol. 1) #19-21), Raphael demands that the Turtles return to New York to confront the Foot Clan and the Shredder. He accuses Leonardo of cowardice, and the arguing brothers soon come to blows. Leonardo is beaten by Raphael, who throws Leonardo through the wall of the barn and leaves alone. Along with his younger brother Donatello and his youngest brother Michelangelo, Leonardo returns to New York and reunites with his wayward brother in the old sewer lair. The three go along with Raphael's plan to storm the Foot Headquarters, where once again Raphael goes off on his own to fight the Shredder. However, he is ambushed and beaten by the Shredder's Elite guard, but is rescued by Leonardo. This prompts Raphael to finally cede to Leonardo's leadership, leaving him to fight the Shredder. Leonardo engages in a bloody battle with Shredder that spills out onto the rooftop of the building. Leonardo ends the battle by decapitating the Shredder just as the building implodes. The Turtles later burn the Shredder's corpse in a funeral pyre in a nearby Manhattan harbor.

In the City at War storyline (Teenage Mutant Ninja Turtles (vol. 1) #50-62), a feud between various factions of the Foot Clan over leadership breaks out. As fighting ensues in the streets of New York, the Turtles and the civilian populace get caught in the middle. Leonardo grows weary of constant battle with the Foot Clan and seems fraught with indecision. The Turtles are approached by Karai, the leader of the Foot Clan in Japan who has come to New York to unite the Foot. She presents the Turtles with an offer of a truce between the Foot and the Turtles if they help her kill Shredder's Elite Guards, which are a major obstacle to her reorganizing the Foot. Despite Raphael's objections, Leonardo persuades his brothers to accept Karai's offer and all four Turtles successfully work with Karai to eliminate the Elite Guard.

In Volume 2 of the Mirage Studios comic, the turtles begin living in separate places. Leonardo decides to live in a newfound sewer lair. Michelangelo and Raphael notice a change in Leonardo and note that he seems more easygoing, though Raphael points out that his and Leonardo's natural order is to be "buttin' heads."

Years later in Volume 4, Leonardo still leads his brothers (all four now in their thirties) in fights against crime. Leonardo and Raphael's conflict seems to have greatly lessened. When the Utroms make a very public arrival on Earth and reveal alien life to humans, however, the Turtles become free to mingle in everyday society. The Turtles also help the Utroms acclimate to life on Earth and work alongside the Foot Clan as security. One Foot Clan member is Cha Ocho, who Leonardo has a rivalry with due to an encounter years earlier. Karai approaches Leonardo for help when a mysterious force begins attacking various Foot Clans; only the New York branch is left intact. His investigation takes him to the Battle Nexus, where he meets Oroku Yoshi (who wears armor similar to the Shredder's).

This incarnation of Leonardo makes an appearance in the Turtles Forever crossover special voiced by Jason Griffith.

Image Comics
In Volume 3 of the Image Comics series, Leonardo was initially portrayed as similar to his Mirage counterpart (at the time, Image was picking up where Volume 2 left off). In the later issues, he lost a hand when it was eaten by King Komodo, although this did not seem to deter him significantly. He tried initially to use a prosthetic hand, which was given to him by Donatello, but he much preferred to wear a steel cap which came with a retractable blade. In the official IDW-published conclusion, TMNT Urban Legends 25, after an altercation with Lady Shredder which smashed his steel cap beyond use, Leonardo's hand was found to have grown back.

Archie Comics
The Archie Comics series initially began as an adaptation of 1987 animated series, so Leonardo was naturally portrayed like his animated counterpart. As the series progressed, it began telling original stories. Leonardo demonstrated a rather strong dislike for firearms. Also, a future version of Leonardo was depicted, having founded a ninja school. Four of his top students were depicted: Nobuko, possibly his love interest; Miles, a young black man; Carmen, a Latina woman and possibly his love interest; and Bob, an anthropomorphic baboon. These students seemed to have an "extended family" relationship with the Turtles, Bob in particular referring to them as uncles.

IDW Comics
Although the IDW series is a complete comic re-imagination of the franchise, Leonardo is initially portrayed as similar to his Mirage counterpart. Leonardo is the eldest brother and the leader of the four. In the Cityfall saga, he gets captured by the Foot while he and his brothers try to save Casey and is taken to a Shinto witch by the name of Kitsune, who uses her strong dark magic to brainwash him into working for Shredder as his chunin (second-in-command), which infuriates Karai. He is later saved by his brothers and their allies, however, after the death of the Shredder at the hands of his father, Splinter, who took over the Foot Clan after the battle, Leo once again became the chunin, but, like last time, it didn't last. The relationship between Splinter and his sons deteriorated after he decided to take another life, going against the very philosophy he taught them to always follow. He revealed that this was, in fact, an intentional way of pushing them away from him, as he believes being around him would be too much of a threat to them, as shown during the events of the comic book. Leonardo assumed leadership over the Clan Hamato, and since then, they've come into conflict with the Foot Clan several times.

Television

1987 animated series
In the 1987 TV series' theme song lyrics, Leonardo is said outright to be the leader of the TMNT, and there is little disputing this; his orders are usually followed, and he is a very serious do-gooder who hardly ever makes wise cracks.  He was attracted to a young kunoichi named Lotus, a swordswoman prodigy from Japan who was hired by Krang to replace Shredder, whom she easily defeated (along with Rocksteady and Bebop). She and Leonardo dueled to a standstill before she resorted to a trick sword to knock him out. When they met the second time, she tried to convince him to join her as "ninja for hire", but he refused. She turned on Krang and escaped to continue her mercenary lifestyle, telling Leonardo that there was little good in goodness, though she hoped that they would one day be on the same side.

Leonardo takes his role of being a leader very seriously. However he can be very bossy which annoys his brothers. Mostly they will obey, sometimes they won’t. In a Season 4 episode "Leonardo lightens up", his brothers got so annoyed that they used a personality alternator to make him loosen up, which lead into huge problems, but ended up going back to normal in the end.

When the cartoon series starts out, he is shown with having a very level head, akin to his leadership qualities in the comic. However, as the series carried on, he became more of a hero of a group of superheroes and spoke in a high pitched voice, which was very different from the original, deeper pitch in the first season.

Leonardo also seems to enjoy reading. For example, many times when the Turtles are at home, Leo is reading a book. In the episode Four Musketurtles, he is the only Turtle that read The Three Musketeers. Another good example is in "Leonardo is Missing"; while the other Turtles go to an arcade, Leonardo stays at the lair and reads. In the Season 6 episode "Snakes Alive", it is revealed that Leonardo has Ophidiophobia, but confronted it later.

In the Season 3 episode "Take Me to Your Leader!", Leonardo gives up his leadership and walks away after a dream he believes convinces him he is no longer a good leader. The others have to find him, and stop Shredder, Krang, and Bebop and Rocksteady from draining energy from the Sun with a Solar Siphon and store it in solar batteries. However, Leonardo returns when he spots a bridge collapsing due to snow. After a man says that everybody talks about the weather but nobody does anything, Leonardo realizes his responsibility and begins to search for his brothers. He later finds them, and together they save the Earth.

Leonardo's voice actor was Cam Clarke, in the actor's "breakout role" and is still one of his best-known roles in the 1987 cartoon. In the crossover movie Turtles Forever, this version of Leonardo is voiced by Dan Green. Leonardo also made a couple of appearances in the 2012 series in the episode, The Manhattan Project. He and the other turtles along with Casey and April are seen through a portal by their 2012 counterparts walking on a road and he made a speaking cameo along with the other turtles at the end of the episode when a space worm from the 2012 dimension started terrorizing the street. All four turtles see the worm and spring into action while shouting their famous catchphrase, 'Cowabunga'. Cam Clarke reprised his role as Leonardo for the cameo. This would mark the first time in over 28 years the 1987 TMNT cast would return to their roles, with the sole exception of Rob Paulsen who returned to the TMNT franchise as Donatello in the 2012 series. The 1987 turtles then had a crossover with the 2012 turtles in the season 4 episode, "Trans-Dimensional Turtles" then in the three part series final "Wanted: Bebop & Rocksteady".

Coming Out of Their Shells tour
The live action "Coming Out of Their Shells" concert tour kickoff event at Radio City Music Hall would see Leonardo cast as the band's bass player, taking a secondary role while Michelangelo would take the role of lead singer and guitarist. However, once the Turtles are confronted by the Shredder and his forces during portions of the show, Leonardo again takes his role as the Turtles' battlefield commander, as they begin to defer to his orders during the various fight scenes in the show. Cam Clarke would reprise Leonardo's voice during non-musical segments of the show, though the VHS tape of the event leaves him uncredited.

1997 live-action series
In 1997-1998, Leonardo along with the other Ninja Turtles were featured in a short-lived live-action series Ninja Turtles: The Next Mutation, as well as a crossover episode with Power Rangers in Space. In it, he carried one double bladed ninjaken instead of two and his sibling rivalry with Raphael drove many episodes. In one episode where they were sparring, Raphael took advantage of Leo's apparent physical weakening, insulting, mocking and taunting his brother to make him more reckless, until finally Leo lost his temper and angrily kicked Raph so hard that he sent Raph flying across the sewer den. They spent the rest of the episode arguing and challenging each other to tests of skill (some of them quite absurd) until finally using arm wrestling to decide who would live in the sewer and who would leave. Although Leo won, it was decided that Raph should stay. In this series, Leonardo was portrayed by Gabe Khouth and voiced by Michael Dobson.

2003 animated series

In the Mirage Studios and 4Kids Entertainment 2003 animated TV series, Leonardo is voiced by Michael Sinterniklaas in the English version, Tetsuya Kakihara in the Japanese version, and Samuel Harjanne (seasons 1 and 2) and Markus Blom in the Finnish version.
Leonardo is the eldest brother, and leader of the group, quiet and the most serious of the four. He has a very close bond with Splinter, and has a strong sense of honor, ethics, and Bushidō. Leonardo's twin swords are slung across his back. Episodes that deal with the Shredder and honor usually also focus on Leonardo, and he is often the Turtle who "saves the day". Leonardo is a more self-doubting character than in previous incarnations. His younger brother Raphael often quarrels with him and resents his leadership, sarcastically calling Leonardo "Fearless Leader", although the two are shown to be very close at times. Though Leonardo's relationships with his younger brothers Donatello and Michelangelo are not as volatile, both have made comments alluding to the high standards the former has set, and his tendency to make them look bad. Despite this, his brothers view him as a pillar of strength and are at a loss when he is injured or absent. One of Leonardo's most prominent qualities is his determination to believe in the good and the best in people, even potential enemies; such as Karai.

At times, Leonardo is shown to be very hard on himself, as he feels that a lot is expected of him. As in the Mirage comics, Leonardo is ambushed and seriously injured by the Foot Clan and he feels he let his family and himself down. He has the same feelings after the final battle with the Shredder-his anger and self-doubt was caused by Karai, who he believed was an honorable ally, but she was unable to go against her master's orders, eventually causing her to stab Leonardo (albeit unintentionally). Leonardo also feels extremely inadequate, as he believes that again, he let himself and his family down, this time by finding no other way to destroy the Shredder than to blow up the spaceship that both the Turtles and the Shredder were on; the Turtles and Splinter would have perished if they had not been rescued by Utroms. Eventually, Leonardo finds inner peace under the guidance of the Ancient One, who trained Splinter's sensei, Hamato Yoshi. From their final battle with the Shredder, Leonardo was the only Turtle to sustain truly lasting damage; part of his shell on his upper left shoulder had its edge shorn. Nevertheless, he is the most skilled of the Turtles, being the only one trained by two ninja masters, capable of facing and defeating Karai, the new Shredder, in a one-on-one fight, as well as defeating all three of his brothers at once in a sparring match.

Through much of the fourth season, while the other turtles are fully healed and recovered from their battle with the Shredder, Leonardo still could not get over his failure. He becomes bitter and increasingly stern with himself and adopts a greatly aggressive personality, which has been likened to Raph's previous impulsive and hotheaded ways on many occasions. Leonardo also shows considerably less reluctance in using violence to interrogate people, and devotes himself to even greater lengths of training in order to protect his family. Not wanting his family to worry about him, Leonardo chose to never tell them about his true feelings about their final battle against the Shredder, although he open up to April and Usagi about his problems. However, Leonardo ended up making his brothers worry for him anyway and Splinter feels he must move on. It comes to a head when Leonardo loses his temper and nearly causes Splinter a serious injury during a training session. Leonardo was sent by Splinter to find Master Yoshi's own sensei, The Ancient One, since there is nothing more he could do for his troubled son. Leonardo encounters a strange short man, as well as obstacles that echo his own anger. In the end, Leonardo admits that he was angry over failing his family while fighting the Shredder and that his only option was to self-destruct the ship to stop him. Leonardo comes to terms with his anger, accepting he did every thing in his power, and begins training under the short man, who turns out to be the Ancient One. Leonardo only leaves when he learns that his family is in danger, a result of Karai's vengeance, which destroys the lair and presumably eliminates them. Leonardo returns to the city, reunites his family in a safe location, and confronts Karai. He defeats her, but after Karai tells him to finish her, he refuses. Leo magnanimously gives her one last chance to leave the Turtles in peace, believing there is still good in her.

In the fifth season, of the eight acolytes under the Tribunal's training, Leonardo is the only one who doesn't receive a weapon from the Spirit Forge. It is implied that his spirit is his weapon, and anything he holds is merely an extension. (This was hinted at in previous seasons.) His otherworldly form is that of a dragon, a rare form, unheard of in someone his age. It is shown destroying evil guarding the second artifact. This avatar is first shown in "More Worlds Than One". His brothers later exhibit dragon avatars as well. In the fifth episode "Beginning of the End", he is given the sword "Gunjin" (one of the Fangs of the Dragon that commands the "White Flame of the Dragon King") by the wounded Faraji, who believes the sword was meant to be Leo's. Leo returns Gunjin in episode 12 "Enter the Dragons" when Faraji returns to help battle the Tengu Shredder, because he believes the sword truly belongs to Faraji.

In the Fast Forward season, and the Back to the Sewers season, the damage that occurred to Leonardo's shell as stated above has somehow been repaired.

Leonardo is trained not just by Master Splinter but the Ancient One himself, Hamato Yoshi's trainer and adoptive father. From then on, Leonardo is far more experienced and skillful at even more complex ninjitsu moves than even Splinter, Raph, Mikey, and Donnie all at once. In the third part of the first season episode series "Return to New York", he cuts the Shredder's head off in a one-on one-duel in Shredder's domain.

Leonardo is the most skilled at ninjutsu and other forms of hand-to-hand combat he all learned from his adopted father and master, Splinter. As his weapons are dual katanas, he is proficient in "the ways of the sword" and basic knife-throwing techniques. If need be, he can use Qi Qong to slow his own bodily functions to survive temporarily without oxygen. After training sessions with "the Ancient One" he developed an intuitive/psionic-like ability to see what has previously transpired by "allowing thought to flow out and within."

2012 animated series

Leonardo again leads the team in Nickelodeon's 3D computer-animated series. He was voiced by actor Jason Biggs up until "The Wrath of Tiger Claw", Dominic Catrambone for the remainder of the second season, and Seth Green beginning in the third season. In this latest version, Leonardo seems to be less experienced and still perfecting his fighting skills and leadership abilities to make more solid decisions and gain more trust from his three younger brothers. He regularly watches an animated science fiction show called Space Heroes (a parody of Star Trek: The Animated Series) and uses it as a guide for his leadership skills, often attempting to quote from the show in an attempt to sound intimidating and heroic, even if most of his attempts fall flat due to him sounding too cliché.

Leonardo's weapons here are purely dual katanas, which he uses in the Niten Ryu style of kenjutsu, making him an excellent swordsman. Despite the fact the other three turtles have added traits in this series, Leonardo is almost completely normal but now has blue eyes. 
Upon the sudden demise of his adopted father and master, he reluctantly steps up as sensei in addition to being the leader, which puts even more pressure on him. He is visited, on occasion, by the spirit of Splinter who encourages him to lead his family and friends to stop new evils.

In addition to his natural ninjitsu skills, he eventually developed the strong innate ability to heal via an enchanted mantra known as "the healing hands." By chanting the incantation and making the right hand seals, Leo is fully capable of revitalizing his inner strength and counteract even the most lethal of poisons and venom of "the healing hands." He managed to develop and utilize it to counteract the lethal venom of Karai, and attempted to use it on her to release her from the Shredder's control but failed. He then succeeded in saving Casey and Michelangelo from death. According to Splinter, he shows great gifts as a healer, and that being at the edge of his life had given him "a power that few martial artists can tap."

2018 animated series
In the 2018 animated series, Rise of the Teenage Mutant Ninja Turtles, Ben Schwartz voices "Leonardo, the self-professed "coolest" brother possesses irreverent charm and a rebel heart". Unlike past versions, he is not the official leader of the turtles until the second season finale, and boasts a less serious, more laidback, charming, sardonic and joke-cracking personality. This incarnation of Leo is a 14 year old twin (Donnie is his younger twin brother). Despite his apparent immaturity and goofiness, Leo is quick-witted and strategic by nature, and also initiatively leads his brothers whenever something has happened to Raphael (who is the group's de facto leader throughout the first two seasons). He can be arrogant about things, but he also demonstrates insecurity and self-doubt. At the end of the season 2 finale "Rise", Splinter randomly appointed Leo the new leader of his sons, much to the shock of him and his brothers.

Films

Original trilogy
In Teenage Mutant Ninja Turtles, Leonardo was fairly modest and sensitive, rarely issuing direct commands and seemingly much more relaxed around his brothers thinking of himself as more of an equal than a leader. It was he who first communicated telepathically with a kidnapped Splinter and seems the most anxious about Raphael's health after his ambush by the Foot Clan. He fought alongside his brothers against The Shredder in the climactic battle and was the only one of the four to actually injure The Shredder, but, like his brothers, could not defeat him. Due to the focus on Raphael in the film's plot, Leonardo's personality was rarely explored and his leader position in the team took a back seat. Leonardo was portrayed by David Forman and voiced by Brian Tochi.

In The Secret of the Ooze, Leonardo was much more prominent and his leader position was brought to focus. He is seen on many occasions bickering with Raphael as their sibling rivalry begins to become much more serious. He, like his brothers, was astonished at the return of the Foot but he found that their current homelessness due to their last battle was a more pressing issue and soon he convinced his brothers that they needed to move. Leonardo is once again sensitive, caring, and humorous in this adaption but he now appears much more bossy and controlling.

In Teenage Mutant Ninja Turtles III, after traveling back in time to feudal Japan, Leonardo leads his brothers to help a village in trouble from the villainous weapons trader, Walker, and to return home.

2007 film
In TMNT, Leo was sent away by Master Splinter to hone his skills in becoming a more efficient leader after Shredder's defeat. April finds him in Central America and while he was hesitant to return to New York City, he does at the right time to take on a new force of evil.

His brotherly relationship with Raphael is strained due to Raphael feeling abandoned by Leo as well as feeling less appreciated by Splinter. Leonardo's vision of the world is perhaps wider than Raph's. In the first movie prequel comic, Leo becomes angry with Raph for trying to leave them in order to save a man from being mugged because there are 4 heavily armed Triceratons in the sewers who could cause devastation to the city. He becomes further angered when Raphael deserts them mid-battle to help an old man. This conflict suggests that the two brothers operate on different levels of morality, though neither is necessarily wrong. Raph states in the comic that he was tired of waiting for disaster to fall on his family and tired of fighting aliens while people in their own neighborhood are being mugged and murdered. Leo, on the other hand, believes that the world of men is the responsibility of the police, while Utroms and Triceratons are their domain... that they should fight only when there is no one else to solve the problem. This also engages Leo in a contradiction when he stays in Central America, using violence to fight local lawlessness and effectively deserting his brothers because he believes as Raph believes, that others need him more. Such parallels suggest that the two brothers are experiencing the same dedication to justice but in a different mentality, albeit in very different locales and using different tactics. In fact, when Leo tracks down and scolds the Nightwatcher (not knowing that he is Raphael), he remarks that he is well aware of the Nightwatcher's good intentions but cannot simply approve of the latter's methods.

Raph challenges Leonardo after arguing of their own individual sense of justice and the reasons for their actions. Leonardo discovers that Raphael is the Nightwatcher and the two engage in an emotional fight. Raph almost kills Leo out of anger and then retreats due to shame and his brother's deep and confused stare. Leo is captured by the Stone Generals and the Foot Clan but is rescued by his family later before the final battle where Leo and Raph finally resolve their differences, Raph accepting Leo as their leader while Leo confesses to needing Raph. Leo is voiced by James Arnold Taylor in this film.

Reboot series
Leonardo appears in Teenage Mutant Ninja Turtles, portrayed by Pete Ploszek in motion capture and voiced by Johnny Knoxville. In this movie, he is dedicated to perfecting his ninjutsu skills and will stop at nothing to defend his brothers and the entire city. There are times where his cautious nature makes him clash with his brothers. Leonardo firmly believes it's his ninja duty to protect all people. He tends to have a similar personality to his '87 counterpart where he is determined to help people and keep his brothers in line. He and Raphael unlike in their other adaptions don't fight over leadership although they have a brief argument over the Hamatshi and Raphael talking about leaving which Leo debunks Raph's claim. In the movie he, like Donnie and Raph, doesn't seek April's attention unlike Mikey who does. He also appears in the sequel, Out of the Shadows, although Knoxville didn't return to voice him, and Ploszek provided both motion-capture and voice.

DC crossover film
Leonardo appears in the direct-to-video crossover film Batman vs. Teenage Mutant Ninja Turtles, voiced by Eric Bauza.

Video games

In the video games, Leonardo is portrayed as well-balanced, having strong but not extreme abilities in all areas and no glaring weaknesses. His range is rather long, but not as long as Donatello's; however, Leonardo can usually inflict more damage. In the Tournament Fighters games, his moves are the closest to a Ryu/Ken archetype from the Street Fighter franchise. He appears in Teenage Mutant Ninja Turtles: Smash-Up as a playable character, with Michael Sinterniklaas reprising the role.

Leonardo is one of the main playable characters in Teenage Mutant Ninja Turtles: Out of the Shadows video game, where he is voiced by Scott Whyte. Leonardo also appears in the 2014 film-based game, voiced again by Cam Clarke.

Leonardo is featured as one of the playable characters from Teenage Mutant Ninja Turtles as DLC in Injustice 2, voiced by Corey Krueger. He is the default turtle outside the gear loadout, while the rest of his brothers, Michelangelo, Raphael and Donatello can only be picked through the said loadout selection, similar to premier skin characters. In their single player ending, Krang had sent them to the world where the war between the Insurgency and Regime was taking place. After the victory over Brainiac, Harley Quinn serves some pizza with 5-U-93-R. With this, they became powerful enough to return home and defeat Krang and Shredder.

Leonardo is featured as a TMNT season pass in Smite as an Osiris skin, voiced by Matthew Curtis.

References

External links
TMNT Community Site – Leonardo Bio
Official Ninja Turtle website

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Shredder 1.0 is a work of Net Art created by Mark Napier. The Shredder 1.0 interface takes preexisting websites and deconstructs their code to create original abstract compositions.

Background
Mark Napier's Shredder 1.0 interface was first revealed in 1998. The Shredder 1.0 web interface was created to be both an interactive exhibit as well as an artwork generator. To create an image the user inserts a URL into the Shredder 1.0 and the code is then reinterpreted by a Perl Script code created by Napier. Perl programming language is a stable, open-source language and is the most popular web programming language due to its text manipulation capabilities and rapid development cycle.

In his piece summary Napier explains that in his view the web is not a physical representation of information in the same way a magazine or book is, but instead a temporary graphic created when browsing software interprets HTML instruction. The focus of Shredder 1.0 is to reveal this hidden truth behind the Internet and give the user a new interpretation of common web pages.

Influences and Technique
Though each website is different and will thus generate a different image, Napier's code is programmed to create aesthetically similar images. Although pieces of the original page often survive the shredding, such as images and some text, the new page closer resembles a non-representational painting. The signature color and shapes created by the Shredder 1.0 are largely due to Napier's background as an artist. Shredder 1.0 pieces have strong Abstract Expressionist roots, making use of Surrealist techniques in automatic art.

References

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Related Works
 Landfill (1998)
 Feed (2001)
 Waiting Room (2002)

External links
 https://wiki.brown.edu/confluence/display/MarkTribe/Mark+Napier
 http://www.perl.org/about.html
 http://www.potatoland.org/
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Thomas Dreher: History of Computer Art, chap. VI.3.3 Browser Art  with a wider explanation of Mark Napier's "The Shredder" (1998).

Computer art
Internet culture The Shredder (Oroku Saki, Japanese: 大六咲) is a fictional supervillain who appears in the Teenage Mutant Ninja Turtles comics and all of its related media. The Shredder was created by Kevin Eastman and Peter Laird and first appeared alongside the Turtles in Teenage Mutant Ninja Turtles #1 in May 1984. In every incarnation of the TMNT franchise, he is depicted as the leader of the criminal organization known as the Foot Clan, and serves as the archenemy of the Turtles and Splinter.

In 2009, The Shredder was ranked as IGN's 39th-greatest comic book villain of all time.

Design
Shredder's physical appearance remains fairly consistent in most incarnations of the character. Saki is a muscular Japanese man, most frequently seen in "the Shredder" persona, wearing a suit of armor vaguely based on that of a samurai, sometimes with a cape. The armor consists of blade-covered metal plaques on his shoulders, forearms, hands (sometimes just his left hand, because he is left-handed), and shins; he wears a purple, gray, blue, or red robe that variously appears to be simple fabric or a form of chain mail. He also tends to wear a metal helmet with a trident-shaped ornament on top, and a metal ninja style mask which covers his face, leaving only his eyes visible. In the 2003 TMNT series, the Shredder is a red alien Utrom named Ch'rell, who utilized an indestructible exo-suit to disguise himself as a human named Oroku Saki.

Kevin Eastman got the idea for Shredder's armor from large trapezoidal cheese graters which he envisioned on a villainous character's (originally named "The Grater" or "Grate Man") arms. He then said, "Could you imagine a character with weapons on his arms like this?" Peter Laird suggested the name The Shredder. Although Shredder is often depicted as the main antagonist in the Ninja Turtles franchise, it was never the creators' intention to be the case in his original inception in the Mirage Comics:

Comic books

Mirage and Image

Oroku Saki
In the original comic books from Mirage Comics, Oroku Saki is the younger brother of Oroku Nagi, who had been killed by a fellow ninja Hamato Yoshi (the owner of Splinter, the Turtles' mentor) in a feud over a woman named Tang Shen, resulting in Yoshi fleeing with Shen to the United States.

Angry at the death of his older brother, Saki joined the Foot Clan and trained to be a ninja. He quickly became one of their deadliest warriors and rose up the ranks and was chosen to lead the Foot's American branch. Operating in New York under the name of The Shredder, Saki used the opportunity to avenge his brother by killing Yoshi and Shen. Under Saki's leadership, the Foot participated in variety of criminal activities, including drug smuggling, arms running, and assassination.

Thirteen years later Saki was challenged by the Ninja Turtles, who were the result of an accident exposing four ordinary turtles to radioactive waste. They were trained by Yoshi's pet rat Splinter, who had also been mutated by the same substance, to avenge his former master. After a lengthy rooftop battle where Saki seemed to be winning, Leonardo managed to plunge his sword through Saki's torso. Defeated, he was offered the opportunity to commit seppuku (ritual suicide), but Shredder refused and detonated a thermite grenade, in an attempt to take their lives alongside his own. But at the last second, Donatello used his bo to knock Shredder off the building to his death.

However, it was not yet the end of the Shredder. He returned on Christmas Eve seemingly resurrected with an army of Foot Ninjas severely beating Leonardo and burning down the apartment of the turtles' ally April O'Neil, forcing them to go into hiding outside the city.

A year later, in the story "Return to New York", the Turtles returned to settle the score with the Shredder. Leonardo faced off against Oroku Saki alone, during which Saki revealed he was brought back to life by a technique using worms feeding on his remains and recreating his cells to reform his body. The same technique was also used to create the Shredder Clones. In the battle, Leonardo decapitates the villain, finally killing him, and the four turtles burn his body at the Hudson River.

Tales of the TMNT
In the second volume of the anthology series Tales of the Teenage Mutant Ninja Turtles story "Worms of Madness" it is shown that a few weeks after the events of their final battle the Shredder had yet another resurrection of sorts when a Foot Mystic reactivated the worms. However, the Foot Mystic did not resurrect Saki himself but the worm colony which had gained sentience and retained Saki's memories and believing itself to be Saki. The worms then went out to find a new body and chose that of a shark. After the Foot kidnapped Splinter, the turtles managed to engage the "Shredder-Shark" in battle, defeating it by severing its connection to the mystic at which point the creature realized that it was not the real Saki.

The "Shredder-Shark" returned once more kidnapping Casey Jones's adopted daughter Shadow to lure the Turtles into a trap. With the Turtles away, it was up to Casey and Splinter to defeat it and rescue Shadow, finally killing the creature.

Other versions of the Shredder
Throughout a considerable part of the Image comic series, Raphael tries to impersonate Shredder by wearing his armor. Following this, he is accepted as the leader of the Foot Clan. In later issues of the series, a mysterious Lady Shredder appears to challenge Raphael. Although the book was canceled before her identity could be revealed, writer Gary Carlson confirmed after the fact that she was meant to be Karai. The female ninja Pimiko from series claims to be Shredder's daughter.

In Volume Four series, Leonardo encounters Oroku Yoshi, a Battle Nexus contestant wearing armor almost identical to that of the second animated series' Shredder. His connection to Oroku Saki and the Foot is not known, since the bi-monthly comic was ultimately cancelled in 2010. In issue 32 he was called to meet a mysterious individual who asks to bring Leo with him as well.

Archie Comics
The Archie Comics' series use the same background as the 1987 cartoon, as the first issues are identical. Later in the Archie comics, Shredder travels to the future and works with Armaggon and Verminator X to offset the skill and experience of the future versions of the Turtles.

This version of the character was more in line with the early episodes' depiction of the character as a cunning adversary and in many issues nearly proves to be a lethal enemy, coming close to defeating the turtles on a number of occasions, even aiding Armaggon and Verminator X in the defeat and capture of two of the turtles in the future. However he shows some amount of honour in the comic. His final fate within the Archie comics series remains unknown, though a three-part mini-series put out by Archie comics after the end of their regular comic series seems to indicate he remains a consistent foe to the turtles for many years, briefly restoring Splinter to the form of Hamato Yoshi and also undoing Michaelangelo's mutation, though both later revert to mutant status by the end of the story, while Shredder was left in a vegetative state in the aftermath of his final battle with the Turtles.

IDW Publishing
In feudal Japan, Oroku Saki was a high-ranking member of the Foot Clan along with Hamato Yoshi. While Yoshi focused on his family, Saki surpassed him and was promoted to Jonin (leader) of the Foot. After an argument on his style of leadership, Saki sent ninja to murder Yoshi's wife, Tang Shen, and later Yoshi and his four sons.

With the help of Kitsune, Saki steals regenerative ooze from an Utrom known as "The Iron Demon" (later revealed to be Krang himself) which is used to preserve his body until he is awakened by his descendant Oroku Karai several centuries later in modern-day New York. During his time in stasis, his spirit conquered the realm of the Afterlife, where he learned he was destined to rule the earth world and eventually return to the Afterlife as a lost soul. Knowing the future, he vows to change it by conquering the realm of the Afterlife upon his return.

Shredder first appears in Micro-series #1 and in full costume on the final page of issue #9. Dan Duncan first designed Shredder with input from Mateus Santolouco and Kevin Eastman; originally wanting to depict a "beefy...monster" he decided to simplify the design and slimmed down the character based on the original Mirage design.

Seeking control in his forthcoming battle for power, Shredder offers Splinter a place in his army but Splinter refuses, revealing himself to be a reincarnated Hamato Yoshi. Saki then reveals his own identity and attacks Splinter, almost killing him when the Turtles arrive to rescue their father. Impressed by Leonardo, he orders his capture and conducts a plan involving kidnapping and stabbing Casey Jones. Shredder then has Kitsune brainwash Leonardo to become his new Chunin (second-in-command) and uses him for a show of strength to the criminal underworld. After the Turtles rescue Leonardo, Shredder calls a meeting with Krang and proposes an alliance in exchange for Utrom technologies, which Krang rejects. A short battle results in retreat on both sides and the revelation that Shredder had stolen some Utrom resources from Krang's compound to begin creating a mutant army (in the form of Bebop, Rocksteady, Koya and Bludgeon).

In Issue #50, Shredder faced Splinter and the turtles in a final battle which he lost and briefly admitted his faults and also making Karai the new head of the Foot Clan in the event of his death. Splinter then retaliated by slashing deep into the back of his head with his sword, killing Shredder instantly.

After his death, Shredder's body is kept in a crypt that is guarded by Jennika who was assigned by Hamato Yoshi in order to learn humility. Shredder's tomb is eventually desecrated by the witch Kitsune who plans to revive Oroku Saki in order to restore order to the Foot Clan but Splinter knew this and keeps the skull to foil her attempts.

Shredder will appear in the upcoming miniseries Shredder in Hell. In the mini-series, Shredder is in the afterlife and descends into the underworld trying to find the truth of his own soul meanwhile Kitsune uses his corpse to summon her father as his host. Shredder also fought his past life Takeshi Tasuo in his inner conflict until Splinter/Hamato Yoshi later shows up to help him against the forces of Hell.

At the time when Mutant Town was established when Old Hob detonated a mutagen bomb the day when Baxter Stockman became the Mayor of New York City, Oroku Saki resurfaces and saves April from some mutant eels that were offspring of the Slithery.

Saki later appears in Old Hob's lair where Old Hob and Man Ray don't recognize him. He frees the weasel children and disappears when he sees Raphael approaching.

As Raphael takes the time to reminice about Splinter, Saki watches him from afar.

Television

1987 animated series

In the 1987 animated series, Oroku Saki and Hamato Yoshi were both members of the Foot Clan in Japan. After Saki framed him for the attempted murder of a visiting sensei, Yoshi was forced to exile himself to New York City, where he lived in the sewers with four pet turtles that were accidentally dropped down a storm drain.

In the following years, Saki took leadership of the Foot Clan and took on his Shredder persona. He also met a trans-dimensional alien called Krang and used the advanced technology at his disposal to replace the Foot Ninja with robots called the Foot Soldiers. He secretly moved to New York, where he found Yoshi still alive. In an attempt to kill his old foe, Shredder dumped mutagen in the sewers. This mutates Yoshi into Splinter, and he starts training the also mutated Turtles in ninjutsu. After the Turtles discovered their operation in New York City, Shredder became their enemy and would stop at nothing until they were defeated, often holding the Turtles' human ally April O'Neil captive as bait. In one episode, Shredder was accidentally hit by his lasted weapon that made him think he was pals with the Turtles as he thought he was Michelangelo. However, Shredder was hypnotized by Splinter into going between his real personality and Michelangelo whenever he would hear their names. Although, after being hit again, Shredder was back to his old self, which might have undone the hypnosis.

Shredder was voiced by James Avery for seasons one to seven and William E. Martin for seasons eight and ten, with the alternates being Dorian Harewood and Pat Fraley in 1989, Jim Cummings in 1991–1993 and Townsend Coleman in 1993. In the 2009 crossover movie Turtles Forever, this incarnation of the Shredder was voiced by Load Williams. In the 2012 series, the 1987 version of the Shredder is voiced by Kevin Michael Richardson due to the death of James Avery in 2013.

Depiction
In his early appearances, Shredder was presented as extremely cunning and was described by Splinter himself as the most dangerous adversary he ever faced. Shredder's intelligence persevered throughout his various portrayals, and in several instances, it is claimed that Shredder has an IQ of 300. As the 1987 cartoon series was more light-hearted than the comics, Shredder was later depicted as evil but a villain that always fails rather than the dire and lethal ninja he was originally shown to be. He and Krang are constantly bickering about tactics and often take pleasure in the other's failings (and sometimes intentionally sabotage each other). His two henchmen Bebop and Rocksteady are especially incompetent and fail miserably at everything they do. They were mostly used for comic relief in the show; however, the Turtles certainly consider them to be formidable (despite their inane stupidity) in combat due to their great strength and endurance, and as such, often use their intelligence to outwit them.

Despite Shredder's failings, he is still shown to have considerable skills. In martial arts, he is often shown to surpass the Turtles and to be equaled only by Splinter. Nevertheless, he usually runs away from a fight when outnumbered, incapacitating the Turtles to defeat them in combat; as the series progressed, however, the Turtles were able to battle him on more equal grounds and even defeat him in combat on several occasions. He trained the Punk Frogs in a very short period of time to be a match for the Turtles, but the Punk Frogs soon switch sides. His technical skills are also quite impressive: he designed and built a robotic body for Krang, prepared the mutagen mixture, knew how Krang's teleportation engine worked and built numerous other advanced devices. Ironically in one episode "Shredderville" the Turtles dream they find themselves in a mirror universe where they themselves never existed and Shredder rules New York City, yet finds the task of ruling so burdensome that he has a nervous breakdown.

From mid-season seven onwards, Shredder was depicted as a more serious threat, full of anger and bloodlust, though he was still easily defeated by the Turtles. His friendship with Krang also appeared to have grown. There were many times that Shredder could have just left Krang at the mercy of the Turtles or Lord Dregg, but he always rescued him and went as far as to donate his life energy to save him.

Family
Shredder's family is presented in three episodes. In the episode "Shredder's Mom", Shredder's mother Miyoko helps Shredder and Krang in an attempt to destroy the world's climate. In this episode, Miyoko first learns of her son's criminal activities and proves herself to be villainous. However, she constantly treats Shredder like a baby, until he gets fed up with it and transports her back to her retirement home. In the episode "My Brother, the Bad Guy", it is revealed that Oroku Saki has a younger brother, Kazuo who works as a police lieutenant in Tokyo. Kazuo and the Turtles try to join forces to stop one of Shredder's plans, but his fervent respect for the law clashes with the Turtles' "whatever it takes" attitude. Finally, the episode "The Legend of Koji" features Saki's distant ancestor Oroku Sancho, who lived in Japan in 1583. He is the leader of a small clan, and every bit as wicked as his descendant. When Shredder offers to help him find magical relics that would provide him with power and wealth, Sancho takes Shredder's information, then betrays him and orders his men to kill him. However, Sancho is also a coward, and when he breaks down in the face of danger, his men abandon him.

This family tree leads to a bit of confusion regarding whether Shredder's given name is Oroku and his last name Saki (as indicated by the fact his brother shares the name Saki), or the other way around (as indicated by the fact his ancestor's last name is Oroku). This question is never resolved on the show, although Mirage comics adds more evidence for Oroku being the family name; Saki's brother is "Oroku Nagi". This follows Japanese naming conventions, which place the family name before an individual's given name.

Timeline
Counting from the first meeting with the Turtles, Shredder spent eight seasons plotting ways to defeat them. In the season 8 episode "Turtle Trek", the Turtles destroy the engines of the Technodrome, trapping it and its inhabitants in Dimension X for good and putting an end to Shredder's plans. He spent the next two seasons in Dimension X, until he was contacted by Dregg ("The Power of Three"). Dregg arranged for him and Krang to come back to Earth, to help him fight the Turtles. Together, they capture the Turtles, but Dregg then betrays them and tries to drain the life energy of the Turtles, Krang, and Shredder all at once, making them weaker while Dregg becomes stronger. Shredder alone escapes the trap and restores Krang ("A Turtle in Time"), but Dregg captures them again. Finally, the Turtles spoil Dregg's plan and transport Shredder and Krang back to Dimension X ("Turtles to the Second Power"). In the series finale "Divide and Conquer", the Turtles return to the Technodrome in Dimension X to take Krang's android body, which they need to fight Dregg. Shredder is nowhere to be seen, but it is assumed that he is still somewhere in Dimension X.

He and Krang also appear in Turtles Forever, with the Technodrome still under New York City before being sent into the 2003 universe. However, Shredder and Krang's incompetence (as well as their relative sanity) is fully shown when the Utrom Shredder of the 2003 universe seizes command of the Technodrome and adds Utrom technology to the powerful war machine, and turns it against the world. In the climax, Shredder temporarily overcomes his hatred for the Turtles as both he and Krang decide to help the Turtles defeat the Utrom Shredder who they realize is totally insane, will kill everyone, and has effectively stolen the Technodrome from them. Shredder also takes extreme offense at being considered inferior by his other-dimensional counterpart, does not see the point of destroying the entire universe, and does not understand why the Utrom Shredder refuses to just kill the Turtles when he has the chance. So, with Krang, he chooses to fight alongside the Turtles against their common foe.

The Next Mutation
In Ninja Turtles: The Next Mutation, Shredder (portrayed by Patrick Pon, voiced by Doug Parker) is still the Turtles' sworn enemy. This time, however, Venus uses her powers to make the Oroku Saki from within taking control of Shredder's mind. After the Foot Clan disbands, he ends up living on the streets. Later, the Dragon Lord's rank warriors attack him to get a medallion that was in his possession. Splinter saves him and takes him to the Turtles' lair to protect him. It was hinted that Shredder might possibly go back to his old ways, but the show was canceled soon after that episode.

In the show, Shredder wore a general attire similar to the one he wore in the second film, but with a heavily altered helmet/mask due to the lesser budget for the TV series as compared to the movies, which had allowed for more detailed props and costume pieces. Shredder appeared only a few times in the show, due to the main antagonist of the series being a draconic being from another dimension and thus supplanted Shredder as the Turtles' nemesis.

2003 animated series
Numerous individuals have assumed the "Shredder" mantle in the 2003 animated series, all of whom, except for Karai, are voiced by Scottie Ray. In the episode "Tempus Fugit", a possible future is shown in which the Utrom Shredder, Tengu Shredder, and Cyber Shredder are engaged in a war for control of New York City.

Utrom Shredder

The Utrom Shredder is the main antagonist and primary Shredder of the series. He is the archenemy of the Turtles and Splinter and indirectly had a hand in their creation. Utrom Shredder serves as the main antagonist of the first three seasons of the show as well as the finale film Turtles Forever. His digital copy also serves as the main antagonist of the seventh and final season.

After causing the deaths of millions across the universe, the megalomaniacal and sociopathic alien warlord Ch'rell (whose aliases include Torrinon, Kako Naso, and Duke Acureds) was captured by his fellow Utrom and being transported back to his homeworld to answer for his crimes. However, Ch'rell managed to escape captivity and sabotaged the Utrom ship, causing it to crash-land on Earth during the Sengoku period of feudal Japan. Stranded on the then-primitive planet, the Utrom were forced to wait for centuries until human technology advanced enough for them to develop a teleportation device and return home. They thus developed humanoid exo-suits to hide amongst the humans, and Ch'rell stole the first working prototype and used the Japanese legend of a Demon Tengu to craft a dual identity, becoming a wealthy Japanese philanthropist named Oroku Saki while secretly operating as the crime lord known as the Shredder. Saki soon founded the Foot Clan, which grew into a massive underground criminal empire by the 20th century, and created important links with the New York underworld, especially with the Purple Dragons; their leader Hun would serve as his right-hand man. Saki also adopts an abandoned girl named Karai, whom he personally trained in the arts of ninjutsu to lead the Foot Clan in Japan while he operated in New York City. In New York, the Shredder captures Hamato Yoshi, one of the Utroms' foremost guardians, and kills him after he refuses to reveal their location. Yoshi's pet rat Splinter witnesses his murder and escapes, winding up in the city's sewers where he and four baby turtles are accidentally exposed to a mutagenic ooze created by the Utroms, transforming them into sentient humanoid lifeforms.

In the first season set over a decade later, the Turtles begin encountering the Foot Clan and unknowingly foiling several of the Shredder's operations. Oroku Saki becomes intrigued with the Turtles, wanting to meet them and hoping to bring them to his side. One day, he invites Leonardo to his home and offers him to join the Foot. However, the Turtles learn of his true nature when Splinter tells them about the Shredder's role in Master Yoshi's murder. The Shredder eventually becomes the greatest enemy of the Turtles when they reject his offer. During their first engagement, the Shredder proves himself to be more skilled than the Turtles, compelling them to flee and hide. While Shredder and his Foot Ninja search for the Turtles, Splinter finds and regroups them, and plans a counterattack. In a subsequent battle on the rooftops, the Shredder outmatches the Turtles again, but Splinter tricks him into cutting the support for a water tower, which is kicked onto him. The water sweeps Shredder off the building, and the tower collapses to the ground, crushing him. But a few scenes later, Shredder's hand emerges from the wreckage of the water tower.

Splinter and the Turtles were unaware of the Shredder's survival until months later, one day when Leonardo goes on an outdoor morning training exercise, only to be ambushed by the Foot Clan. He is beaten close to death and sent flying into a window of April O'Neil's antique shop apartment, where the Turtles were staying after Foot Ninjas had marauded their sewer home while they were away. Soon afterward, the Shredder leads an assault on April's shop. Overpowered and outnumbered, the Turtles, Splinter, April, and Casey Jones are forced to retreat in a walk-in cooler. The Shredder then burns down the apartment, but the Turtles and their allies evacuate and depart for Casey's grandmother's farmhouse, where they would spend the next three months recuperating.

During this time, they are presumed dead, but Saki orders Baxter Stockman to find evidence that the Turtles died, and is cheated by Stockman into believing so. When Leonardo is completely healed from his injuries, the Turtles and Splinter return to New York to face the Shredder once more. They launch a surprise assault on the Foot headquarters, fighting their way through Shredder's minions and eventually reaching his throne. By the end of the battle, Leonardo decapitates The Shredder when they strike each other in one final clash. Not knowing that he is an Utrom, the Turtles believe him to be finally killed for good. After they leave, the Shredder is seen to be getting up and walking away carrying his severed head.

In the second season, Ch'rell seeks to exact revenge on his species. He infiltrates the TCRI facility, where the Utroms' base is located and encounters the Turtles and Master Splinter. Despite their efforts, an unconscious Shredder slips out a time bomb, set to detonate in ten minutes. The Turtles help the Utroms escape using the Transmat, a teleportation device, which Donatello activates. After the Utroms teleport back to their homeworld, the Shredder awakens and attacks the Turtles. In the ensuing fight, the Turtles use their weapons to penetrate his armor, which is then shocked by Donatello, disabling it. Afterward, the Shredder reveals his Utrom form to the Turtles, intent on taking down his enemies with him. However, in the last few seconds, Donatello manages to power up the Transmat, through which he, his brothers, and Splinter escape before the TCRI building implode with Ch'rell inside of it.

With his supposed demise, the Foot Clan, the Purple Dragons, and the New York Mafia clash with each other for control of New York City. Unknown to them, the Shredder had survived once more and was retrieved by his daughter Karai, now being placed in a stasis tube and healed by worms inside a secret medical facility of the Foot headquarters. During his recuperation, Karai assumes leadership of the Foot Clan and makes peace with the Turtles after they help her end the turf war. However, once the Shredder is fully recovered, he vows vengeance and breaks off the truce. By this point, Baxter Stockman had created the Foot Mechs, mainly in the form of armed ninja robots, but in versions of the U.S. president, the English Prime Minister, and Splinter as well. The Shredder's plans were again thwarted when the Turtles, Splinter, and their unlikely ally, the Triceraton Zog, locate his barge hideout, leading to another confrontation with the Foot. Aboard the freighter, Donatello programs a bomb set to go off in 30 minutes. The Shredder is defeated again when Zog sacrifices himself by seizing him and jumping into a blazing fire, but Karai rescues him on a helicopter.

In the third season, the Triceratons launch an invasion on Earth. In the aftermath of the invasion, New York City is in ruins. In his persona as Oroku Saki, the Shredder uses his fortune to repair the damage and gains the favor of its citizens, while secretly salvaging the remnants of Triceraton technology to construct a large starship to return to the stars, so he could retaliate against the Utrom. He also promotes Karai to lieutenant and enlists the help of a young scientist named Dr. Chaplin, replacing Hun and Stockman due to their numerous failures. The craft is eventually completed, but Ch'rell's plan suffers several complications, courtesy of the Turtles and the Earth Protection Force (led by Agent Bishop). Despite sustaining heavy damage, the ship is launched into orbit, albeit with the Turtles and Splinter on board. When Karai notes that they left their forces on Earth, Ch'rell states that he has allies on other worlds that can help him. Entering a four-armed Shredder exo-suit, Ch'rell easily defeats them all, prompting the Turtles and Splinter to attempt to sacrifice their lives and blow the ship up in a final attempt to stop the Shredder. Luckily, as the starship explodes, Mortu and the Utrom arrive, having placed a stasis field around the entire ship, freezing time, and teleport all its inhabitants to safety. While the Turtles and Splinter are teleported to the infirmary and Professor Honeycutt is taken to one of their labs to be placed in a new robot body, Ch'rell, Karai, and Dr. Chaplin are teleported to the brig. On the Utrom homeworld, Ch'rell is placed on trial before the Utrom High Council that is watched by the Turtles, Splinter, and Professor Honeycutt. The Utrom High Council starts by mentioning a testimony from Dolphette that Ch'rell willingly launched an attack on the planet Enethone where over a million innocent inhabitants perished. Then they bring up Wan-ran Otho's testimony where Ch'rell incited and funded a civil war on the planet Eno II in an effort to mine their raw minerals without restriction. 3,200,000 lives perished. The Utrom High Council then concludes that Ch'rell tried various attempts to take over the Utrom government through an illegal and violent coup. The Utrom High Council found Ch'rell guilty for the chaos and destruction he brought across the universe, and ultimately sentence him to eternal exile on the desolate ice asteroid Mor Gal Tal.

In the finale film Turtles Forever, Ch'rell is freed from his exile by his Shredder counterpart from the 1987 series after his frozen body was teleported off of Mor Gal Tal by the 1980's Shredder and Krang. Once Karai showed up upon finding out about Ch'rell's return, Ch'rell then takes over the Technodrome and gains a new, more powerful exo-suit. After realigning with a now-mutated Hun, Ch'rell reverse-engineers the mutagen that Hun got to turn a select number of Cyber Foot into Mutant Foot Soldiers and create new Foot Robots that are stronger than the '80s versions. The Ch'rell later uses the Technodrome to view alternate dimensions, realizing that there is an entire multiverse of Ninja Turtles. Locating the Turtles' source planet, Turtle Prime, Ch'rell vows to eliminate every Ninja Turtle in existence by destroying this dimension. The Mirage Turtles, the 1987 Turtles, and the 2003 Turtles team up to defeat Ch'rell, though Karai and Splinter agree that the Shredder will return again as he always does.

In "Same As It Never Was", Donatello is transported to an alternate future in which the Shredder has succeeded in subjugating Earth. By then, Splinter had died protecting his sons and Casey Jones died fighting the Foot Clan. Ch'rell also severed Michelangelo's left arm and Raphael's left eye. When Donatello leads a final rebellion against the Shredder's fortress, his Foot forces kill Michelangelo while Karai kills Leonardo and Raphael. April avenges Leonardo and Raphael by using a rocket launcher on Karai, and the Shredder is killed by Donatello with the Tuneller.

In "Timing is Everything", Leonardo and Cody Jones are accidentally sent back in time to the aftermath of the Turtles' first battle with the Shredder. Later, the Shredder and several Foot ninjas are transported to 2105 but are easily defeated by the Turtles' futuristic technology.

Tengu Shredder
The Tengu Shredder or the original Demon Shredder serves as the overarching antagonist of the series and the main antagonist of the fifth season. The very first Shredder was a Demonic Tengu that rose from a hellish pit and terrorized ancient Japan. After a fierce battle with the Five Dragons, when on the verge of death at the hands of Oroku Saki, the strongest of the five , it brokered a deal to enter and possess him. Tempted by the demon's promises of power, Saki welcomed the monster's essence into his being and assumed all of its terrible powers. His reign of terror would come to an end, as the original Shredder was eventually defeated by the power of his former comrades, each of whom mastered powerful metaphysical practices of their own to combat their corrupted warrior. In defeating and concealing the evil warlord, the remaining Dragons would fade from historical memory in order to become the Ninja Tribunal. The quartet of immortal warriors spent the next couple of centuries watching over the demonic conquerors remains; having his body, helmet, and gauntlet separated and sealed away at differing locales to prevent his return. Later in the 21st century, the Tengu Shredder's five heralds, the Foot Mystics, would attempt to resurrect him. They first enlist a bone demon backed by their mystic amulet to bypass the Tribunal, Master Splinter, and the Ancient One's vast insight, but the plot was foiled by the youthful Turtles who saw through said trinket's arcana. Years later, the onset of the true Shredder's return forces the Ninja Tribunal to recruit the Turtles alongside four human warriors as their Acolytes, whom they would train in their ways for the purpose of preventing the resurrection of the Tengu Shredder. After the Demon Shredder rises from the dead and conquers New York City, the Turtles recruit Karai's Foot Clan, the Justice Force, the Earth Protection Force, and the Purple Dragons to defeat him. The Demon Shredder is weakened when Karai drains his power via a mystic link (which connects all who take the mantle of the Shredder), and he is finally destroyed when the Turtles combine their Dragon avatars to summon the spirit of Hamato Yoshi, who delivers the final blow, ending the Demon Shredder for good.

Cyber Shredder
The Cyber Shredder appears as the main antagonist of the seventh and final season, Back to the Sewer. It is revealed that prior to Ch'rell's exile, he created a digital copy of himself in the event that anything happened to his corporeal form and stored this double in a Foot data vault deep within the Internet. This vault's consciousness is later released when the futuristic Viral attempts to access it, giving rise to the Cyber Shredder. While he is initially confined to cyberspace, the Cyber Shredder ultimately manages to escape and become a physical being. During the final episode, the Cyber Shredder leads the Foot Clan to attack April O'Neil and Casey Jones's wedding and is finally defeated when the Turtles erased him with a de-compiler previously used against Viral.

Karai
Karai is the adopted daughter of Oroku Saki (Ch'rell), who takes the mantle of the Shredder after her father's exile. After some lesser battles, she willingly renounces the mantle and begins a non-hostile relationship with the Turtles, particularly towards Leonardo.

2012 animated series
The Shredder appears as one of the two main antagonists (alongside the Kraang) of the 2012 animated series, voiced by Kevin Michael Richardson.

His Japanese origins as Oroku Saki and brotherly relationship with Hamato Yoshi is mostly intact, with the Foot Clan and the Hamato Clan being later revealed as having a long-term rivalry before the Hamato family killed the Oroku family, wiped out their entire clan (starting with the destruction of the Foot Clan monastery) and took in the orphaned Saki as their own. Despite being raised as brothers, both Saki and Yoshi eventually became rivals due to the love of Tang Shen, whose decision to marry Yoshi drove Saki to discover his true heritage and turn on his former brother, eventually destroying everything Yoshi held dear, including the lovely Tang Shen (whom he had killed by accident) and the entire Hamato Clan (starting with the destruction of the Hamato Clan monastery, which resulted with Saki's head getting burned scarred and hairless). Blaming Tang Shen's untimely death on Yoshi, Saki returned to his biological family and became the new leader of the newly restored Foot Clan, tutoring ninjutsu students such as world-famous martial artist Chris Bradford and Brazilian street thug Xever Montes, sharing criminal business with business partners such as Russian arms dealer Ivan Steranko, Sicilian mob boss Don Visiozo, and Purple Dragons leader Hun. In addition, he also a pet akita named Hachiko (named after the akita of the same name) who played a part in Bradford's mutation into Dogpound after Hachiko bit him.

Shredder first appeared at the end of "Rise of the Turtles, Part 2" where he traveled to New York when he learned that Hamato Yoshi is training his own ninjas after seeing a shuriken with his clan symbol on a shuriken left behind by the Turtles during a recent fight on a TV news report. Determined to finally end his age-old rival's life, he sent the Foot Clan after the Turtles until he made his first confrontation with the Turtles in person in "The Gauntlet", where victory was seemingly in his grasp before he was distracted by the mutating Bradford and Montes. Although Shredder planned to kill former TCRI inventor Baxter Stockman for interfering with his plans to kill the Turtles in "MOUSERS Attack", he changed his mind by commenting on how Stockman's scientific knowledge could be useful to him. Shredder is also Karai's father, as seen in "New Girl in Town". However, in "Showdown", during Shredder's battle with Splinter, he reveals that in the aftermath of the fight that caused Tang Shen's death, he took Splinter's daughter, Miwa, and raised her as Karai. He has told her that he is her biological father and it was Splinter who killed her mother, as she has sworn revenge ever since. Shredder initially dismissed the Kraang's presence in New York, but after capturing one, decided to ally with them to destroy the Turtles. The partnership seems stable, though it would seem the Shredder still did not fully trust his new allies.

Early in the second season, in "Follow the Leader", he left for Japan to deal with a situation, leaving Karai as the interim leader of his Foot Clan. He ordered her not to attack the Turtles nor make any dealings with the Kraang behind his back and was livid when his adoptive daughter disobeyed him. He returned in "The Manhattan Project", with Tiger Claw, a Japanese circus performer who was mutated into Shredder's deadly assassin and new first lieutenant. Tiger Claw was able to bring Splinter before him, but complications from a Kraang operation in the city and the Turtles' own efforts rob Shredder of his chance to kill his old foe once again. In "The Wrath of Tiger Claw", Shredder and Tiger Claw attempted to use Karai to set a trap for the Turtles, but when she saw a photograph of Hamato Yoshi, Tang Shen, and herself as an infant, she realized that the Turtles were telling the truth and sided with them, resulting in her being captured while buying them time to escape Tiger Claw. Shredder still cared about his adoptive daughter, though, as seen in "The Legend of the Kuro Kabuto", where he visited her in her cell and explained why he kept everything a secret and hoped that she will one day understand. After his helmet, the titular Kuro Kabuto, was stolen by professional thief Anton Zeck on behalf of Steranko, Shredder found Zeck's calling card on a glued-down Rahzar and ordered the entire clan before him. Explaining the helmet's history as a special Foot Clan relic, he had the clan hunt for Zeck, sending Fishface with Stockman-Fly and Rahzar with Tiger Claw. Leonardo later confronted Shredder with the Kabuto for trade and kept him busy long enough for the other Turtles to get to Karai. However, the "Karai" Shredder traded them with turned out to be a dummy rigged with a bomb as the Turtles evaded it. In "Vengeance is Mine", Shredder attempted to use the real Karai as bait for a trap that would mutate the Turtles into snakes that would kill Splinter, but the plan backfired when Karai was exposed to the mutagen, turning into a snake and almost attacking Splinter before she fled after regaining control of herself.

In the two-part second-season finale "The Invasion", Shredder and Kraang Prime formed a full alliance in which Shredder and the Foot Clan will help the Kraang take over New York and then the world, and in turn, the Kraang would return Karai to normal, and deliver Splinter and the Turtles to him. Later, he watched as Leonardo fought and eventually defeated his army of Foot Bots, after which he sent Rahzar, Fishface, and Tiger Claw to take care of him. Leonardo managed to subdue them for a short period of time before Shredder got involved and badly injured Leonardo. Later, Splinter confronted him and the two battled until Splinter got trapped under large metal pipes. Shredder was prepared to kill his rival once and for all; however, Leatherhead intervened, and was defeated when Shredder sliced the front of his torso and kicked him off the edge of the dock. Splinter became furious as he broke out from under the pipes and tackled Shredder to the sewers. Later, the Turtles (minus Leonardo) and April watched helplessly from behind metal bars as Shredder defeated Splinter and seemingly killed him by throwing him down a large draining bay.

In the middle of the third season in "Return to New York", tensions began to grow high within the Foot of their alliance with the Kraang, but Shredder convinced everyone that he will keep his promise to take the city back from them. After a feral Splinter was found by the Foot-Bots and taken before him, Shredder had Stockman-Fly work on restoring his memory, which is what April did instead with her Kraang powers when she, the Turtles, and Casey Jones returned to the city to rescue their sensei. In "The Pig and the Rhino", Shredder sent a now mutated Steranko and Zeck (who are later renamed Bebop and Rocksteady by Michelangelo) to find Karai again, as they did recently before the Turtles helped her escape, or else they will be given something even more painful than mutation. After the Turtles unknowingly led them to her, the two succeeded in re-capturing Karai (while the Turtles were not looking) and delivering her back to Shredder, who promised to fix everything he had done to her. The Kraang invasion eventually came to a stop made by the Turtles and the Mighty Mutanimals, but its effects had eventually given Shredder a gift for his cooperation with the Kraang, which shifted the balance of power within the city's criminal underworld over to the Foot. For him, this was achieved by gaining control of the Purple Dragons and other Asian gangs through Hun, several South American gangs through Fishface, the Russian mob through Rocksteady, and the Sicilian mob through Vizioso. By using this power, Shredder had these crime groups aid him with collecting various chemicals from a chemical company called Aumen Chemicals, an abandoned Kraang lab and Vizioso for a mind-control serum that he planned to create and use on the Turtles, the Mutanimals, and Karai.

In the two-part season 3 finale, Annihilation: Earth! he briefly teams up with Splinter to stop a black hole machine that was to destroy the Earth. He briefly fought the Triceratons until he followed Splinter, double-crossing and stabbing him in the back, killing him instantly in front of the turtles. They rushed to Splinter while April blew Shredder away with a blast from her mind. Proclaiming that his victory over Splinter is more important to him than even saving the world, Shredder is sucked into the black hole along with his followers and Splinter while the turtles, April and Casey escape Earth's destruction and then in "Beyond the Known Universe", they travel back in time to six months earlier in an effort to prevent this event from happening. In "Earth's Last Stand" these events were revisited, but the arrival of the Turtles from the future resulted in Shredder's attempt to murder Splinter being thwarted. The two engaged briefly in battle with Splinter proving victorious, and the unconscious Shredder was carried away by Tiger Claw.

In "City at War" due to the injuries he sustained from Splinter, Shredder has been confined to a hospital bed under the care of Stockman with Bebop and Rocksteady as his bodyguards. When Tiger Claw returns to report the loss of an entire weapons cache thanks to the Turtles and Karai back in Manhattan, making it clear Karai wants to take Shredder down one piece at a time by destroying his criminal empire before taking him out, Shredder decrees that if it is a war Karai wants, it is a war she will get, before Stockman hooks an I.V. filled with mutagen up to Shredder, and as the mutagen is injected into Shredder, his eyes open wide as the mutagen takes effect. In "The Insecta Trifecta", Shredder is still receiving the mutagen drip as he now turns to Stockman as his last hope due to his undying loyalty since Tiger Claw and the others have become useless as of late in stopping Karai and the Turtles. When Stockman returns to report his mission a failure, Shredder is not worried about it, revealing to Stockman that his mutagen drip is finally taking effect as Shredder deploys a pair of blades from the back of his hand, right out of the skin itself. In "The Super Shredder", Shredder forces Stockman to give him the rest of the mutagen drip, which mutated him into his Super Shredder form, although it ended up monstrous he was still pleased. This form left him with blades coming out of his body, a muscular build, and bandaged feet and ankles. Shredder then collects his henchmen and travels back to his old lair. Karai tries to fight the Shredder along with Shinigami, but Shredder easily knocks Shinigami unconscious and he escapes with Karai. He then notices a van coming straight towards him (The Shell Raiser), and flips it over. He tells the Turtles to have Splinter meet him at the place that he last beat him. Shredder then sets the vehicle on fire and the turtles flee to the sewers. Shredder then creates a trap for Splinter and the Turtles, which is full of photos of Splinter, Tang Shen, and Karai. When Splinter enters he drops bars of iron to avoid them from escaping. He then lights fire towards them but they jump underwater. As the Turtles, Splinter, and April continue to approach Shredder, Karai makes a remark and Splinter follows, but later finds out he was led into another trap. Shredder forces Splinter to fight him but Splinter escapes, ready to set up a plan of his own. Splinter leads Shredder to the Undercity, where he puts his plan into action. Shredder eventually finds Splinter and attacks him relentlessly. Shredder then takes Splinter deeper into the UnderCity, where he decides to finish him. Just as Shredder was about to strike Splinter, his arm started to lose control, causing him to step back. However, Shredder quickly recovers and after crushing Splinter's leg and threatening to destroy his loved ones, Splinter then throws a blade at a few gas tanks and both Splinter and Shredder fall to their deaths. However, in the following episode, "Darkest Plight", Shredder and Splinter are separated during the fall, and Shredder returns to the top of the Under-city to be rescued by Tiger Claw, who takes him back to recover before hunting down the Turtles. While Tiger Claw deals with April and Karai, Shredder goes after Leonardo and nearly crushes him to death before Karai and April arrive to help. During the battle, Shredder tosses a wrecked fuel tanker semi-truck at Karai, only for April to catch it in her psychic grip, causing her Sol Star crystal to cause her eyes to glow blue and smile malevolently before hurling it back at Shredder. However, before Shredder can kill Leo, Karai pleads with him to reconsider doing something good in his life instead of being consumed by his vengeance. This lures Shredder in close enough for Karai to hit him in his most vulnerable spot: His exposed, pulsating mutated heart. Weakened, Shredder is saved by Tiger Claw, who drives him back to their hideout, where Shredder demands a larger dose of the mutagen from Stockman. When Tiger Claw objects, knowing it is too dangerous, Shredder overpowers him, forces Stockman to administer the dosage, and roars as the mutagen takes effect as Tiger Claw watches in horror and fear. In "Tale of Tiger Claw", he is shown as a M.O.U.S.E.R. hologram to warn Tiger Claw of his next move against Splinter.

In "Requiem", he returns to New York City, far stronger and more vengeful than ever before. He shows up at the hideout where Karai is planning her next move with Shinigami and the Mighty Mutanimals. He defeats the Mutanimals effortlessly and badly injures Karai in the process. On the WOLF building, he faces off against Splinter, Slash, Raphael, April, and Casey. He ultimately manages to murder Splinter and hurls him from the building to his death. He is then blasted by a tremendously powerful psychic wave from an enraged April and is crushed by a garbage truck, though he again survives the onslaught.

In the season four finale "Owari" he has his lackeys prepare for the inevitable arrival of the Turtles, April, and Casey. He burns down his new lair and confronts the Turtles in a final showdown on the roof. His unique mutation makes him immune to Donatello's retro-mutagen, which allows him to beat Raphael, Donatello, and Michelangelo all at once, leaving only Leonardo left standing. After a heated one-on-one duel, Shredder is finally killed by Leonardo.

Many months later, the Kabuto and his own heart were separated by unknown means and hidden in secret locations throughout New York. His heart was contained within a glass vial that came into the possession of Don Vzioso, which Tiger Claw and a demodragon named Kavaxas seek, as it is essential to revive him and then came back in a zombie-like form that was later revealed to be under Kavaxas’ control. But thanks to Michelangelo's quick thinking and some chewed gum, Zombie Shredder was able to drag Kavaxas back to the Netherworld as they "belong dead."

2018 animated series
Shredder appears as one of the three main antagonists (alongside Baron Draxum and Big Mama) of the 2018 animated series, voiced by Hoon Lee.

500 years before the series, Oroku Saki was the leader of the peaceful Foot Clan and father of the Hamato Clan founder, Karai, whose soul was swallowed by the demonic and nigh-unstoppable Kuroi Yōroi armor after it was forged by a horrible Oni (that resembled Krang). After being transformed into the Shredder, Saki led the Foot down a path of darkness, enslaving many villages and slaying many innocent lives in the process. With no other choice, Karai was forced to create her own clan, the Hamato Clan, to end the demon's reign of terror. Shredder terrorized Japan until he was defeated by Karai using her mystic Hamato Ninpō energy (since no mortal weapon could harm Shredder) to send him into a dimension called the Twilight Realm, and the Kuroi Yōroi was scattered across the world to prevent his return. The side effect of Shredder's defeat had sent Karai into the Twilight Realm, along with Shredder's sapience being sealed away. In the aftermath, Karai's remaining followers made it their sworn duty to watch over the armor pieces and never allow the Foot to reclaim them.

The Foot, allied with Baron Draxum, began collecting the armor pieces to resurrect him starting in "Shadow of Evil", with the Yōkai alchemist being promised of its dark power to protect his people from an ancient prophecy predicting the Yōkai's destruction.

In "Warren and Hypno, Sitting in a Tree", Draxum claimed the gauntlet in Warren Stone's possession that turned out to be part of the Kuroi Yōroi.

In "Operation: Normal", the Foot Brute and the Foot Recruit targeted the slime Yōkai, Sunita, because the boots she was wearing were part of the Kuroi Yōroi. They managed to claim them.

In "How to Make Enemies and Bend People to Your Will", Draxum and the Foot Recruit found out that a Kuroi Yōroi fragment was at the Botanical Gardens. They claimed it after setting up events where the Foot Lieutenant and the Foot Brute would fail. After obtaining the fragment, Draxum declared himself to be the Foot's leader, via exploiting a loophole in the clan's rulings of leadership. However, Draxum was completely oblivious to the fact that the Foot were just manipulating him into reviving their true leader, as they needed a being of great mystic power to don and energize the armor in order to resurrect Shredder (they were unaware that Shredder would not regain his sapience upon resurrection).

In "One Man's Junk", the next piece of the Kuroi Yōroi was in the possession of Repo Mantis, who claimed it from a Yōkai and held in his salvage yard. After trapping the cat/mantis mutant, Mrs. Nubbins who was owned by Repo Mantis, the Turtles learn that two fire-headed guys working as shoe salesmen bought the metal from him. This caused the Turtles to learn that the Foot Lieutenant and the Foot Brute claimed the metal.

After the Kuroi Yōroi was completed in "End Game", Draxum donned the armor, intent on destroying humanity once and for all in his misguided quest to protect the Yōkai. The Foot Lieutenant and the Foot Brute addressed him as Shredder, but he rejected the title, confused with the name "Shredder". Furthermore, due to a flaw in the armor (the Turtles' Jupiter Jim action figure was shoved in to cover a hole when the faceplate was used as a tea kettle), it was not able to properly absorb Draxum's power. After Draxum was defeated and spat out of the armor, due to April knocking a baseball against the action figure, it reassembled itself, having drained Draxum of his life force.

In "Many Happy Returns", Shredder acted like a feral beast, due to his sapience still being sealed in the Twilight Realm. During the chaos, a heavily weakened Draxum used his remaining strength to escape through a portal the Foot Recruit opened to assist her senses. After being attacked by the demon, the Foot Lieutenant, Foot Brute, and Foot Recruit retreated to find out what went wrong. After discovering a flux in Shredder's quantum energy, causing him to randomly phase in and out between Earth and the Twilight Realm, Big Mama was able to provide a mystic collar for the Turtles and Splinter to trap Shredder in another dimension, though she made a secret last-minute alteration to this plan.

In "Battle Nexus: New York," Big Mama secretly attached a control device and its associated magic ring to the Shredder and controlled him under the alias of Shadow Fiend. This was discovered during the Turtles, Splinter, April, and the redeemed and recovering Draxum's fight with Big Mama. When the ring was removed from Big Mama during the fight, the Foot Recruit claimed it. Before Leonardo could portal Big Mama out during their escape, she got cut off. The Foot Recruit, furious that her master was enslaved, ominously told Big Mama that she was about to lose everything and advised her to run. The Shredder then destroyed the Grand Nexus Hotel, flying out into the city with the Foot Recruit on his back.

Films
The Shredder was played by James Saito in the first movie and by François Chau in the second, while his immense Super Shredder form was played by professional wrestler Kevin Nash. In all cases, the character was voiced by David McCharen. The Shredder's costume was, in the first movie, originally the same as in the original comic, with a red color. However, this was changed in the sequel to a violet color, reflecting the more cartoonish nature of the second film. In both movies, he also had a silver and black cape. In both films, he is served by his second-in-command Tatsu. In the Japanese versions, the Shredder is voiced by Norio Wakamoto (1st movie in VHS version), Hidekatsu Shibata (first movie in the TV version), and Takeshi Watabe (second movie).

Teenage Mutant Ninja Turtles (1990)

In the first movie Teenage Mutant Ninja Turtles, Oroku Saki and Hamato Yoshi were rivals martial artists in Japan and both loved a woman named Tang Shen. Shen, who loved only Yoshi, persuaded him not to fight Saki honorably; instead, they fled for the United States. Saki followed them to New York City; when Yoshi returned home from his construction job he found his beloved Shen lying on the floor. And then, he saw her killer. Saki wasted no words and during the struggle, Splinter's cage was broken. Splinter leaped up into Saki's face, biting and clawing. But Saki threw him to the floor and took one swipe with his katana, slicing Splinter's ear. After this incident, it was said that Saki is never heard from again. The comic book adaptation of the film retains the original comic book origin story, with Oroku Nagi being slain and Saki coming to America to seek vengeance.

Saki, in the "Shredder" persona, establishes an American branch of the Foot Clan. With the aid of his second-in-command Tatsu, he manipulates and recruits troubled teens as a brutal yet Machiavellian leader and father figure, teaching them ninjitsu to make them into skilled thieves and assassins. Shredder sends the Foot Clan to "silence" April O'Neil when she reports on the Foot Clan's connection to the recent crime wave, inadvertently leading them to the Turtles' hideout when Raphael saves April. Shredder had Splinter kidnapped and imprisoned him in his warehouse hideout, and has the Foot Clan hunt the Turtles. He beats Splinter while interrogating him about how the Turtles learned their fighting techniques.

After the Turtles successfully defeat the Foot Clan in a final assault, Shredder confronts them on a rooftop. He defeats all of the Turtles with his superior skills and threatens Leonardo with his yari to force the others to toss away their weapons. Splinter, freed by Turtles' allies, Danny Pennington and Casey Jones, intervenes and reveals to Shredder that they met years ago, as he was Hamato Yoshi's pet. Shredder unmasks himself, revealing the scars that Splinter gave him, and charges Splinter to impale him. Splinter counters with Michelangelo's nunchaku to send him over the side of the roof. Shredder throws a tanto at Splinter. Splinter caught the knife, but had to let go of the nunchaku that was holding onto the spear, making Shredder fall into a parked garbage truck far below. Casey Jones then activates the crushing mechanism; the viewers are then shown a closeup of the Shredder's helmet being crushed, implying his death.

TMNT II: The Secret of the Ooze (1991)
In the second movie Teenage Mutant Ninja Turtles II: The Secret of the Ooze, the Shredder was played by François Chau, replacing Saito. In the film, the Turtles believe that since Casey had crushed him in the garbage truck, the Shredder was dead. It is soon revealed that Shredder had survived the crushing and revitalized his Foot Clan to get vengeance on the Turtles. After finding the Foot "fallback" headquarters in a junkyard, Tatsu was asking who would challenge him to cover for Shredder until Shredder appeared. Tatsu allowed Shredder to lead the Foot Clan. Shredder sent a member of the Foot to follow April, hoping to find the Turtles through her. When April's team was doing a report on T.G.R.I. in New Jersey, April's camera operator/Foot Clan member Freddy found some mutated dandelions and sent one to the Shredder. He then orders Tatsu to obtain a sample of the T.G.R.I. mutagen that mutated the Turtles, as well as kidnap researcher Jordan Perry. Using the last mutagen and Perry's research, the Shredder creates his own mutants, Tokka and Rahzar, from a stolen snapping turtle and a brown wolf respectively. Though initially enraged at their infant-like intelligence, he soon plays it to his advantage by manipulating the mutants as they imprinted him as their surrogate parent.

After a failed attempt to kill the Turtles in the junkyard using a captured Raphael, Shredder unleashed Tokka and Rahzar onto a city street to "have fun" and destroy it. The Foot spy then gave April a message for the Turtles: that the Shredder would turn the mutants loose on Central Park next if they did not accede to a rematch at the construction site. After the Turtles de-mutate the two mutants (with help from Perry) and defeat Tatsu in a nightclub, the Shredder appears and threatens to mutate an innocent woman with a small reserve mutagen vial (the canister was knocked away by the Turtles' new human ally, Keno). Before he can mutate her, he is stopped when the Turtles play a keytar at full volume, sending the Shredder flying through a window from the force of a blown speaker. When the Turtles follow him outside on a pier, they discover that the Shredder has used the mutagen vial on himself. He is transformed into a massive "Super Shredder", an almost mindless giant-mutant being with immense superhuman strength. During his fight with the Turtles, Super Shredder knocks down the pier's pilings in a mindless rage, which then collapses onto him with the Turtles falling into the water below. Though the Turtles survive, the Shredder meets his demise from getting crushed by the destroyed pieces of the pier.

Teenage Mutant Ninja Turtles III (1993) and TMNT (2007)
The Shredder did not appear in the third film but is shown briefly at the beginning of the fourth film to help give the backstory of the Turtles, and his helmet that he wore in the 1990 film is visible on Splinter's shelf of mementos at the end of the movie. The possibility of his return is also strongly hinted at the end of the film by Karai. However, the established storyline was abandoned in favor of the 2014 reboot.

Teenage Mutant Ninja Turtles (2014)
Japanese American actor Tohoru Masamune portrayed the Shredder in Teenage Mutant Ninja Turtles. Initially, William Fichtner was intended to portray a Caucasian version of the Shredder, with the anglicized real name of Eric Sacks, instead of Oroku Saki. This idea was abandoned late in production in favor of featuring a Shredder of authentic Japanese ancestry, and the film went through re-shoots to change Fichtner's character of Sacks into being the Shredder's student. The change came too late to alter the film's Nintendo 3DS tie-in video game, and Sacks remains the Shredder in it. In contrast to much of the brand's history, Sacks, not Shredder, is the character connected to the Turtles' origins, having created them alongside April O'Neil's father; the Shredder (never referred to with any name other than his codename) has no connection to Splinter or the Turtles, and while he is shown to have scars on his face, it is not revealed how he suffered them.

In the earliest stages of development for the film, Shredder was reimagined as "Colonel Schrader", the military leader of the black-ops unit "The Foot", revealed later in the script to be a yellow-skinned, red-eyed alien with the ability to sprout spikes. This idea was dropped after Evan Daugherty was hired to rewrite the script in early 2013.

In the film, Shredder is the leader of the Foot Clan, who is terrorizing New York City. After a vigilante stops the Foot Clan, Shredder orders the Foot to take hostages down the subway in order to lure the vigilante out. Later in the film, Shredder's adopted son, Eric Sacks, informs Shredder that the vigilante is in fact four mutated Turtles who are test subjects of Project Renaissance, a science experiment of April O'Neil's late father. Sacks give Shredder an armed suit and a helmet, the latter and the Foot Clan attack the Turtles' lair, where he defeats Splinter and kidnaps three Turtles after Raphael was presumed dead. Sacks drain the Turtles' blood in order to create mutagen so that he can complete his and Shredder's plan: the latter will release a virus across the city and Sacks will sell the mutagen as a cure for the disease, making him even richer. As Shredder prepares to release the virus, the Turtles escape and confront him. Although he nearly defeats them, the Turtles were able to conquer Shredder with the help of April, which causes him to fall from the building on which he stood, but he survives and is shown to have a sample of the mutagen.

Teenage Mutant Ninja Turtles: Out of the Shadows (2016)
Brian Tee portrayed Shredder in the 2016 film, Teenage Mutant Ninja Turtles: Out of the Shadows. At the beginning of the movie, the Foot Clan, led by a scientist named Baxter Stockman, attempts to help Shredder escape from prison. Although the turtles try to prevent the escape, Stockman was able to help Shredder escape using a teleportation device. But Shredder is hijacked mid-teleport and ends up in a place called Dimension X. There, he meets Krang, who gives Shredder a mutagen canister in exchange for a promise to find the three components of a machine that Krang sent to Earth long ago, which when united will open a portal to his dimension. Shredder returns to New York City and recruits two criminals named Bebop and Rocksteady and has Stockman use Krang's mutagen to transform them into powerful animal mutants- a warthog and rhinoceros. Shredder, Bebop, and Rocksteady find the components in a museum in New York and in a jungle in Brazil. Shredder and Stockman unite the components, creating a portal to Krang's dimension. Shredder betrays Stockman and has his men take him away, but upon entering the Technodrome, Krang immediately betrays Shredder, freezing him and locking him away with his collection of other defeated foes.

Batman vs. Teenage Mutant Ninja Turtles
Andrew Kishino voices Shredder in the crossover animated film, Batman vs. Teenage Mutant Ninja Turtles. In the film, Shredder allies his forces with Ra's al Ghul and the League of Assassins to build a machine designed to transform Gotham's citizens into unhinged mutants. In exchange for his assistance, Ra's promises Shredder access to one of his Lazarus Pits, which would grant him eternal life. When he and the Foot Clan try to steal a cloud seeder from Wayne Enterprises, he ends up fighting Batman and barely comes out victorious after using an ancient technique.

Later, he fights Batman once more when the Turtles and the Bat-Family arrive at Ace Chemicals to stop him and Ra's from activating the machine. Though he gains the upper hand on the Dark Knight once again, he is thrown off when Batman says "Cowabunga" and gains assistance from Raphael. After Michaelangelo and Donatello destroy the machine, the debris sends him into a vat of chemicals as the plant explodes. In the post-credits scene, he is revealed to have survived the explosion and now strongly resembles the Joker.

Video games
As the original TMNT video games are mostly based on the 1987 cartoon, Shredder is often based on his first cartoon incarnation. He usually executes some plan to provoke the Turtles into retaliating and defeat them; these include kidnapping April O'Neil and stealing the Statue of Liberty. Shredder is usually the last boss in the games.
[[Teenage Mutant Ninja Turtles (NES game)|Teenage Mutant Ninja Turtles]] (NES, 1989): Shredder is the final boss. He is found at the end of the Technodrome level. He causes the Turtles to lose roughly half their energy if he touches them, and has a gun that can de-mutate them, which instantly kills them. He wears a red costume like in the Mirage comics.Teenage Mutant Ninja Turtles (arcade, 1989): Once again, Shredder is the final boss and is found at the end of the Technodrome level. He is armed with a sword, and has the ability to clone himself (the exact number of clones is one more than the number of Turtles attacking him in the arcade version). Shredder and his clones also have the ability to shoot lightning bolts from a device on the helmet, which de-mutate the Turtles they hit, killing them. When Shredder or one of his clones is close to death, his helmet falls off, a unique occurrence in the game series.Teenage Mutant Ninja Turtles: Fall of the Foot Clan (1990): This game was the first one not to feature Shredder as the final boss. Instead, Shredder is the boss of the penultimate stage, which is set in a river. It is also the first game in which Shredder does not have the ability to de-mutate the Turtles. His only attack is a sword swipe, but he can teleport if hit. The final boss is Krang.Teenage Mutant Ninja Turtles: The Manhattan Missions (1991): In this PC game, Shredder fights the turtles in his Manhattan hideout, decorated in a Japanese style. His appearance is based on the Mirage comic version.Teenage Mutant Ninja Turtles III: The Manhattan Project (1992): This game is the first to feature both a battle against Shredder and a second one against a mutated Super Shredder. The first battle takes place at the end of the Technodrome level, which is the sixth of the eight levels of the game. In this battle, Shredder uses a sword to attack the Turtles. Shredder later returns as the final boss of the game, on the stage set in Krang's spacecraft. This time, he mutates himself into Super Shredder, much as he did in the second movie which had been released earlier the same year (1991). Super Shredder has two superpowers, the ability to call down lightning, and the ability to shoot fireballs. These fireballs can de-mutate the Turtles, but unlike other games, this is not an instant kill.Teenage Mutant Ninja Turtles II: Back from the Sewers (1991): A sequel to Fall of the Foot Clan, this game also features Shredder as a regular level boss and Krang as the final boss. He does not have the ability to de-mutate the Turtles, but he does have a wider variety of attacks than in the previous Game Boy game. Shredder returns later in his mutated Super Shredder form, as a sub-level boss of the final Technodrome level. However, in this incarnation, his only super-power is the ability to teleport elsewhere on the screen. He attacks the Turtles using a sword.Teenage Mutant Ninja Turtles: Turtles in Time (1991): Shredder is again the final boss of the game, and found in the Technodrome. However, this time, he is not preceded by a Technodrome level. Instead, the Turtles fight through a Starbase level in the future (2100 AD) with Krang as boss, then teleport to the Technodrome in the present (1991 in the arcade game and 1992 in the SNES version) for the final confrontation. Shredder attacks with a sword, and can fire energy attacks. In the SNES port of the game, Shredder begins the battle by mutating himself into Super Shredder and has the added superpowers of super-speed movement, fire ground attacks, ice air attacks, and a de-mutating fireball which costs a turtle a life. The SNES port also added a Technodrome level earlier in the game, which leads to a battle with a regular Shredder. In this battle, Shredder is in a kind of battle tank, armed with a machine gun and claws. The player views the action over Shredder's shoulder inside the tank, and the only way to cause damage is to hurl the never-ending waves of Foot Soldiers toward the screen and into the tank.Teenage Mutant Ninja Turtles: The Hyperstone Heist (1992): This game uses a Super Shredder similar to the one in Turtles in Time. His attacks are roughly the same.Teenage Mutant Ninja Turtles III: Radical Rescue (1993): Unlike its two predecessors, Fall of the Foot Clan and Back from the Sewers, this game does feature Shredder as the final boss. However, this time Shredder has become Cyber Shredder, half-man, and half-machine. This form of Shredder possessed deadly kick moves and energy ball attacks, as well as being the only boss in the game with two life meters, as the meter instantly refills after it is drained the first time.Teenage Mutant Ninja Turtles: Tournament Fighters (1993): This is the first game in which Shredder is not a boss but instead a regular playable character. Furthermore, his costume is based on the Mirage comics version. Finally, in the SNES incarnation of this game, he appears under the name Cyber-Shredder, but there is no indication that he has become a cybernetic being as in Radical Rescue.

After a 10-year hiatus, a new series of TMNT games was initiated. These new games are based on the 2003 cartoon series, and likewise, Shredder in the games is the same as in the cartoon.Teenage Mutant Ninja Turtles (2003): Shredder appears as the final boss. The Turtles face him on the helicarrier at the top of the Foot Helicarriers; he wields the Sword of Tengu in this fight. Shredder's combo attacks are quick and nearly continuous. When half of his health bar has been depleted, his attacks become much faster. There is also a secret final boss in which the player faces Shredder as Oroku Saki. His combos are much quicker and deadlier, and he also has a temporary powered-up state.Teenage Mutant Ninja Turtles 2: Battle Nexus (2004): The game begins a short while before the end of the previous game, and Shredder is encountered by the Turtles in the second stage of the game; however, he is not fought by the player, only in a cutscene. As in the cartoon, Shredder is defeated, but he survives the assault on his headquarters. Shredder resurfaces in the TCRI building later on, but once again, the player does not directly fight him; the main goal of the mission being to evacuate the Utroms back to their home planet. He is seemingly killed in the destruction of the TCRI building, but he once again survives. In a subplot exclusive to the game, he is detailed as being a mass murderer of Utroms on their homeworld, and he gave Utrom mercenary Slashurr a permanent scar. He later wiped Slashurr's memory and employed him to kill the Turtles. However, Slashurr eventually remembers his past, and with the Turtles, battles Shredder and the Foot on his ship. The Turtles eventually defeat Shredder once again. In the Battle Nexus fighting tournament mode, Shredder appears as the final boss of the Foot Fight tournament, though the nature of these tournaments when it comes to the game's canon is questionable.Teenage Mutant Ninja Turtles: Mutant Melee (2005): Shredder appeared as a playable character and opponent in three forms—his standard armor, without the armor (as Oroku Saki), and a golden "Mega" Shredder.Teenage Mutant Ninja Turtles 3: Mutant Nightmare (2005) The third chapter of the game, "Exodus", deals directly with the Turtles thwarting the Foot's efforts. As in the third-season finale, the Turtles and Splinter battle the Foot at their headquarters, and follow the Shredder aboard his starship. They nearly sacrifice themselves to kill Shredder as well, but the Utroms rescue them, and exile Shredder to a distant ice asteroid forever. Shredder is also encountered in the dark future as one of the final bosses of the Nightmare chapter of the game.TMNT (2007): In the console versions of the 2007 movie-based game, Shredder appears as a boss in a flashback-within-a-flashback (as the events of the game are told to Splinter after their occurrence). The armor of Shredder in this game is based on the 2003 cartoon series version.TMNT: Smash Up (2009): Shredder is a playable character in the PS2 and Wii fighting game. He appears in both his Utrom Shredder and Cyber Shredder forms.Teenage Mutant Ninja Turtles: Out of the Shadows (2013): Shredder appears as both the penultimate and final boss of the game. He recruits Baxter Stockman to build a new helmet for him using stolen Krang technology, which gives him telekinetic powers, including the ability to fly. Shredder is first fought in his lair when the Turtles come to save April and learn about his scheme. After escaping, he has fought again in the Krangs' secret underground facility, this time donning his new helmet built by Stockman. He is ultimately defeated by the Turtles, who destroy his helmet, leaving him to swear revenge.Teenage Mutant Ninja Turtles (2014): The Nintendo 3DS game based on the 2014 film, Shredder, who is actually Eric Sacks, appears as the final boss. However, after defeating him, it is revealed that it was all an illusion created by Baxter Stockman, to allow the real Shredder to escape.Nickelodeon Kart Racers (2018): Shredder appears as a non-playable background character in the Teenage Mutant Ninja Turtles tracks, based on the 2012 incarnation.Nickelodeon Kart Racers 2: Grand Prix (2020): Shredder appears as a playable driver, once again based on his 2012 appearance.Nickelodeon All-Star Brawl (2021): Shredder appears as a playable character, based on his 1987 appearance.

Other appearances
In the anime adaptation Mutant Turtles: Choujin Densetsu-hen, the backstory from the original cartoon was preserved. Unlike the rest of the main cast, Shredder's appearance was changed to match the Supermutants Shredder toy that was being sold at that time. The manga explained this by saying his original outfit was destroyed in a battle with the Turtles and Krang created the new armor for him. Shredder also gains the ability to transform into the dragon Devil Shredder using the Mutanite crystals he stole from the Neutrinos. With the energy from the evil sprite Dark Mu, he was later able to transform into the gigantic Dark Devil Shredder. In the second volume of the anime, he gets his Tiger Spirit Metal Mutant armor. He was voiced by Kiyoyuki Yanada.

Shredder also made a guest appearance in an episode of the hit YouTube show Death Battle. In the episode, his weapons and abilities were analyzed against X-Men'' villain Silver Samurai. In the end, Shredder proved himself the better fighter and beat his opponent.

References

External links
 The Shredder profile on the official TMNT website

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