Dororo as seen in Episode 4
Character info
Title Lance Corporal
Gender Male
Race Keronian
Faction Keroro Platoon
Voice Actor ThornBrain
First Appearance Episode 4
Status Lead character
Lance Corporal Dororo is a main character in Sgt Frog Abridged and is a member of the Keroro Platoon. He has numerous friendship and relationship issues, and he is the series' emotional chew toy.


Dororo was born "Zeroro" and grew up rich but very unpopular. He had several problems making friends, some of which were his fault, (he was prone to making Keroro and Giroro instantly hit puberty with his outlandish remarks). Despite this, he managed to befriend Keroro and Giroro, only for them to emotionally and physically abuse him for the rest of his life. When everyone enlists in the army, Zeroro works his way to becoming an assassin, (Keroro and Giroro claim this was their doing, their over-the-top abuse supposedly training and manipulating him to be agile). By the time of his introduction, he had changed his name to "Dororo", broken his leg, befriended Koyuki Azumaya, and become a ninja.

Dororo is likely the most bastardized character in the series; where his Keroro Gunsou counterpart was subject to being ignored and having a "trauma switch", Dororo has been emotionally (and even physically) abused throughout his life by his best friends and has several friendship and relationship issues. These manifest themselves in the form of constant loneliness, dependency on Keroro and Giroro, body spasms, and (on a lighter note) occasional self-deprecation.

Dororo also has several parental issues. His father is apparently the infamous space pirate Viper, believed by Dororo to be the source of his countless issues due to Viper's criminal life and general absence. He also claims his mother was ungrateful and didn't care about him, which is evidenced by her calling him "Lewis" and paying kids to hang out with him, (though the problem could have been that they wouldn't hang out with him otherwise, and not because his mother didn't want to be around him as he may have interpreted it).

By the time Dororo has come to terms with his parental issues, Keroro hints that he may have had several "Dad's" in his life, which brings his issues flooding back.


Dororo's relationships are plagued with his emotional problems. Because Keroro and Giroro abused him as a child, he developed a type of Stockholm Syndrome and seems to be dependent on them. He also gets so lonely that being around Keroro and Giroro doesn't help, nor does being around Koyuki, the only girl to ever care about him. Though the two aren't seen together often, Koyuki has shown concern for Dororo and continues to house him.

His relationship with Giroro notably develops in Episode 7: after Keroro reminisces about the three going treasure hunting, Dororo goes searching for Giroro's lost "M.E.A.T." membership card. Giroro reluctantly admits that he appreciates the act, insisting on buying Giroro a drink. From that episode on the two are more noticeably on even ground, in contrast to Dororo's blatant hitting on Giroro in Episode 6, or Giroro's open amusement toward his childhood abuse of Dororo in Episode 4.

It is difficult to tell how much his mother appreciated him; while his room was filled with toys as a child, his mother forgot his name just like his friends. She also payed kids to hang out with him for longer than two minutes, which Dororo comes to resent. Also, while it is obvious that their family is rich, she had a tendency to be stingy, even in cases of Christmas gifts for Zeroro.

Episode 8 reveals that Dororo had a little brother, whom he supposedly sold for money. Kululu appears to equate Dororo to his brother, suggesting the platoon do the same with Dororo to earn back money.

Dororo has not interacted with the other characters very closely, though he has politely addressed Natsumi as "Ms. Natsumi."

Running Gags Associated with Dororo

  • Getting Dororo's name wrong with a mispronunciation or "Doro"/"Zero" pun (Doorknocker, Doorbell, Zerodo, ZeROWROW); a completely different name (Lewis, Rudolph, ZZ Top); or something that isn't even a name (Pants, Laryngitis, Hangnail).
  • Dororo being lonely or finding that the strangest things make him lonely ("Mints make me lonely").

Notable Quotes

"I'M SO LONELY!" - Episode 6
"I'm lonely..." - Episode 7

"Keroro, you're looking a lot like me right now. I want you to think about that very carefully." - Episode 9

"My friendship issues, my obsession with being you and Giroro’s friend, never being happy even when I’m with you, and not even being happy with the only girl to ever care about me. It’s because my dad was a criminal who was never around and left me to an ungrateful mother who paid people to hang out with me because I CAN’T MAKE FRIENDS!!! - Episode 10


  • Dororo's slight British accent is to both mirror his rich upbringing and differentiate him from Thorn's other voices.
  • Yoshi didn't care about Dororo before Episode 4. Up until then he had been very passive when Thorn made updates about the character's voice actor status. Despite this Dororo quickly became one of Yoshi's favorite characters to write, making his early apathy and the direction they took Dororo's issues all the more ironic.
  • Dororo was first voiced by ThePS2God during the first two months of The Midnight Frogs existence; he was dropped due to problems recording lines for Episode 2R. He was then replaced with Australian YouTube user ZMoulton, but Z was eventually dropped long before the character first appeared, even before the SFA2R promo.