Muttley's a Hanna-Barbera animated fictional character created by Iwao Takamoto and originally voiced by Don Messick (who also voiced Scooby-Doo); he's now voiced by Billy West. Bio Muttley, a mixed breed dog, first appeared in Wacky Races in 1968, as the sidekick of a nasty but incompetent and horribly accident-prone villain Dick Dastardly. While Dick was created as the equivalent of Professor Fate from the 1960s movie The Great Race, Muttley mirrored the film's character of Max Meen. Dick and… (More on Muttley)