Alpha (Up)

Alpha is the secondary antagonist of the Pixar's animated film, Up, turned later into a supportive protagonist. The leader of Charles F. Muntz's pack of dogs, Alpha is known for his high-pitched voice, resulted on the malfuction of his recording collar, though his real voice is more serious and intimidating. He appears in the villains tournaments, whenever Muntz sends his canine companions after an opposed rival.