Rudy is an albino bipedal Baryonyx measuring 80 feet in length, sporting yellow eyes with red irises, and black claws and round spines. His body is slightly rotund. Rudy is vicious, fearsome, ill-tempered, vengeful, relentless and hostile. Rudy was constantly on the hunt and quick to attack others and is also known to be a stalker. Despite Rudy's enormous size, he was capable of speed and flexibility.