Clifford Maurice Feltbottom, often called by his nickname, Cliff, is the macho but dimwitted leader of the Greaser Dogs and one of the main antagonists of the show. Look at him wrong, and he'll pound you with his cinder-block-like bulldog paw. He may pound you even if you look at him right. Fortunately, Cliff's got the mental capacity of a pack of dog biscuits, so he's easily outsmarted. He enjoys beating up CatDog. Cliff is often annoyed by Eddie the Squirrel, who longs to be a greaser dog like him. Cliff is 20 years old. He likes pounding CatDog, but he dislikes CatDog (mostly Cat), people who try to be smarter than him, and all cats (with a few exceptions such as female ones). He’s voiced by Tom Kenny, who also portrays Dog.