Rudy

Rudy is the primary antagonist in ''Ice Age: Dawn of the Dinosaurs. ''He is a giant dinosaur, presumeably a Spinosaurus or Baryonyx, and is responsible for the loss of Buck's eye, to which Buck hunts for the dinosaur.

For most of the film, he is unseen character who makes small cameos, such as his shadow being seen or his foot stomping on the ground. He is feared by Momma, a T-Rex, who avoids him for most of the movie.

At the climax, he makes his full appearance attacking the main heroes, but is knocked off a cliff by Momma, although it is shown that he survived and Buck is riding on his back while he roars in rage.