Underdog

Underdog was an American animated television series that debuted on October 3, 1964, on the NBC network and continued in syndication until 1973 for a run of approximately 124 episodes over NBC and occasionally, CBS. Underdog was an anthropomorphic superhero parody of Superman and similar heroes with secret identities. The premise was that "humble and lovable" Shoeshine Boy, a cartoon dog, was in truth the superhero Underdog. George Irving narrated and comedy actor Wally Cox provided the voices of both Underdog and Shoeshine Boy.