Tommy Cadle is one of the main characters in Pet Alien.
Tommy Cadle was a happy boy who had no cares in the world and did well in school, but at least until the aliens came along. Tommy is the scapegoat of the show and is bullied by some of the other kids because of the aliens' antics. He gets really annoyed by them and sometimes hates them. However he does generally accept the aliens as part of his life and sees Dinko as his close friend. Dinko always refers to him as "Tommy of Earth" and seems incapable of grasping that his name is just Tommy much to his annoyance.