Craig Bartlett was ? in Hey Arnold! as 'Brainy (voice), DJ (voice), Brainy / DJ (voice), Arnold's Father (voice), Brainy / Steel Mill Worker (voice), Movie Man / Steve (voice), Chester (voice), Brainy (voice; uncredited), Brainy / Astronaut / Stockbroker (voice), Brainy / Paper Boy (voice), Brainy / Mr. Packenham (voice), Monkeyman (voice; uncredited), Cabbie / Party Clown (voice), Nashville Ned / Customer #1 (voice), Mop Guy (voice), Minister (voice), Big Man (voice), Father (voice), Abner (voice)'.
