Streaky the Supercat is a fictional superhero cat that appears in comic books published by DC Comics as Krypto the Superdog's best friend and sidekick. He first appeared in Action Comics #261 (February 1960) and was created by Jerry Siegel and Jim Mooney.
Obviously, don't nominate any human characters. Hybrids like Cheetah or The Lizard are okay, as are shapeshifters with one set animal form (eg Professor McGonagall.)
