Rocky the Flying Squirrel

Rocket J. Squirrel, usually called by the nickname "Rocky", is the name of the flying squirrel  protagonist of the 1959-1964 animated television series Rocky and His Friends and The Bullwinkle Show (both shows often referred to collectively as The Rocky and Bullwinkle Show), produced by Jay Ward. Rocky's sidekick is the cartoon moose, Bullwinkle. Both Rocky and Bullwinkle were given the middle initial "J" as a reference to Ward.