Jennifer Aniston character Annie Hughes (voice)
Harry Connick Jr. character Dean McCoppin (voice)
Vin Diesel character The Iron Giant (voice)
James Gammon character Foreman Marv Loach / Floyd Turbeaux (voice)
Cloris Leachman character Mrs. Lynley Tensedge (voice)
Christopher McDonald character Kent Mansley (voice)
John Mahoney character General Rogard (voice)
Eli Marienthal character Hogarth Hughes (voice)
M. Emmet Walsh character Earl Stutz (voice)
Jack Angel character Additional Voices (voice)
Bob Bergen character Additional Voices (voice)
Mary Kay Bergman character Additional Voices (voice)
Michael Bird character Additional Voices (voice)
Devon Cole Borisoff character Additional Voices (voice)
Rodger Bumpass character Additional Voices (voice)
Robert Clotworthy character Additional Voices (voice)
Jennifer Darling character Additional Voices (voice)
Zack Eginton character Additional Voices (voice)
Paul Eiding character Additional Voices (voice)
Bill Farmer character Additional Voices (voice)
Charles Howerton character Additional Voices (voice)
Ollie Johnston character Additional Voices (voice)
Sherry Lynn character Additional Voices (voice)
Mickie McGowan character Additional Voices (voice)
Ryan O'Donohue character Additional Voices (voice)
Phil Proctor character Additional Voices (voice)
Frank Thomas character Additional Voices (voice)
Patti Tippo character Additional Voices (voice)
Brian Tochi character Additional Voices (voice)
Pat Fry character Man #1 (voice) (uncredited)
Mark Hubley character Marky Maypo (archive sound) (uncredited)
Carole Jeghers character Firefighter Woman (voice) (uncredited)
Jack Paar character Self (archive sound) (uncredited)
Patrick Pinney character Man #2 / Soldiers (voice) (uncredited)
