Onder andere met: Jennifer Aniston (Annie Hughes (voice)), Harry Connick Jr. (Dean McCoppin (voice)), Vin Diesel (The Iron Giant (voice)), James Gammon (Marv Loach/Floyd Turbeaux/General Sudokoff (voice)), Cloris Leachman (Mrs. Lynley Tensedge (voice)), Christopher McDonald (Kent Mansley (voice) (as Christopher MacDonald)), John Mahoney (General Rogard (voice)), Eli Marienthal (Hogarth Hughes (voice)), M. Emmet Walsh (Earl Stutz (voice)), Mary Kay Bergman (Additional Voices (voice)), Ollie Johnston (Train Engineer #1 (voice)), Jack Angel (Additional Voices (voice)), Michael Bird (Additional Voices (voice)), Devon Cole Borisoff (Additional Voices (voice) (as Devon Borisoff)), Rodger Bumpass (Additional Voices (voice))