Scrappy-Doo sock 'em!" Another of Scrappy-Doo's catchphrases is, "Ta dadada ta daaa! Puppy power!". He is also quite strong, capable of smashing down solid rock walls and carrying both Scooby and Shaggy over his head seemingly without effort. The character was created by Joseph Barbera and developed by writer Mark Evanier, who has acknowledged that Scrappy's personality was largely based on that of the "Looney Tunes" character Henery Hawk. In "Scooby-Doo Meets the Boo Brothers", "Scooby-Doo and the Ghoul School", and "Scooby-Doo and the Reluctant Werewolf", Scrappy is more toned down, as he is less feisty and a little more cowardly,
Scooby-Doo (character) would be renamed "Scooby-Doo" by Fred Silverman, CBS's head of daytime programming, between its unsuccessful first pitch and a second pitch which earned the show a green light. Silverman came up with the name from the syllables "doo-be-doo-be-doo" in Frank Sinatra's hit song "Strangers in the Night". Taking notes from a Hanna-Barbera colleague who was also a breeder of Great Danes, Production designer Iwao Takamoto designed the Scooby-Doo character with a sloping chin, spots, a long tail, a sloped back, and bow legs – all traits in direct opposition to those of a prize-winning purebred Great Dane. In defining the