One of the many characters of the American animated comedy sitcom The Simpsons. Originally the worst bully in Springfield Elementary, the closest thing Bart had to an archnemesis of his own age and the leader of Jimbo, Kearney and Dolph. As the seasons passed, though, he became more sympathetic and eventually began to clean up his act. As a result, his broken home started mending itself. Voiced by Nancy Cartwright.