Earth-C's population also consisted of the various "funny animal" characters that appeared in DC Comics over the years, particularly those in such Golden Age and Silver Age DC titles as "Funny Stuff", "The Dodo and the Frog", "Real Screen Comics", and so forth. Indeed, several characters from these series made cameo appearances during the run of "Captain Carrot and His Amazing Zoo Crew!". One of those older characters, Peter Porkchops, was a member of the Zoo Crew itself as Pig-Iron. Reference was also made to Fastback's uncle being Merton McSnurtle, a Golden Age funny animal superhero known as the Terrific Whatzit.