Rudy is the main antagonist of the third "Ice Age" movie.

Rudy is the archenemy of Buck the weasel and Momma the T.rex. He is one of the top predators in the dinosaur world and is feared by everyone in it. Before the movie takes place, Rudy attacks Buck the weasel, scratching out his eye. He then eats Buck but before he can swallow him, Buck rockets out of the dinosaurs mouth, knocking out one of his teeth. During the movie, Rudy manages to track down the sub-zero heroes and attempts to eat them all. However, they are saved by the timely arrival of Momma, who charges Rudy and pushes him off a nearby cliff to his apparent death. However, it is later shown that he survived the fall.