Cat R. Waul is the primary antagonist in An American Tail: Fievel Goes West. He is the leader of the Cactus Cat Gang and Fievel's arch-nemesis. He is voiced by John Cleese. His goal in real life is to kill the mice in Green River and turn them into mouseburgers. His spider lackey is T.R. Chula.
Cat R. Waul is a wicked, devious, gentleman-like, sophisticated, cruel, hungry cat who wants to eat the mice in Green River.
Cat R. Waul is a slender brown cat with green eyes, whiskers, a pink nose, black claws, a light brown muzzle, feet, paws and tip of his tail. He wears a red top hat with a black stripe, a monocle on his left eye, a white dress shirt, a black bow-tie, a pink vest with golden buttons, a red cape and white cuffs on his feet.