This is the story of a nine-year-old boy named Hogarth Hughes who makes friends with an innocent alien giant robot that came from outer space. Meanwhile, a paranoid U.S. Government agent named Kent Mansley arrives in town, determined to destroy the giant at all costs. It's up to Hogarth to protect him by keeping him at Dean McCoppin's place in the junkyard.
Harry Connick Jr.....Dean McCoppin (voice)
Vin Diesel....The Iron Giant (voice)
James Gammon....Floyd Turbeaux (voice)
Cloris Leachman....Mrs. Tensedge (voice)
Christopher McDonald....Kent Mansley (voice)
John Mahoney....General Rogard (voice)
Eli Marienthal....Hogarth Hughes (voice)
M. Emmet Walsh....Earl Stutz (voice)
Jack Angel....Additional Voices (voice)
Bob Bergen....Additional Voices (as Robert Bergen)
Mary Kay Bergman....Additional Voices (voice)
Michael Bird....Additional Voices (voice)
Devon Cole Borisoff....Additional Voices (voice) (as Devon Borisoff)
Rodger Bumpass....Additional Voices (voice)
Filmography links and data courtesy of The Internet Movie Database.