Kurt Russell as Copper (young by Corey Feldman), the cute young hound puppy (whom looks a beagle or a basset hound) belonging to Amos Slade. Copper is Tod's best friend when young; he befriends Tod during his childhood. However, he is the first to break this friendship and becomes Tod's bitter enemy but is also the first to protect him. He is a fast learner through growing up. In his first year of hunting he tops Chief.