Le Quack (French for "The Quack") is a French con artist duck who always tries to score a fortune. He is the secondary antagonist of the the series Courage the Cowardly Dog and Straight Outta Nowhere: Scooby-Doo! Meets Courage the Cowardly Dog.
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.)
