"An alien and a robot land on Earth after World War II and tell mankind to be peaceful or face destruction."
Michael Rennie
as Klaatu, alias Mr. Carpenter
Patricia Neal
as Helen Benson
Billy Gray
as Bobby Benson
Sam Jaffe
as Prof. Jacob Barnhardt
Hugh Marlowe
as Tom Stevens
Lock Martin
as Gort
Freeman Lusk
as General Cutler
Edith Evanson
as Mrs. Crockett, landlady
Frank Conroy
as Mr. Harley, Secretary to the President
Frances Bavier
as Mrs. Barley, boarder
John Brown
as George Barley, boarder
Olan Soule
as Mr. Krull, boarder
Marjorie Crossland
as Hilda, Barnhart's secretary
Elmer Davis
as Elmer Davis
H.V. Kaltenborn
as H. V. Kaltenborn
Drew Pearson
as Drew Pearson
Gabriel Heatter
as Gabriel Heatter (voice)
Harry Lauter
as Lieutenant in Charge of Landing Site
James Doyle
as Army Dr. White
Larry Dobkin
as Balding Army Doctor
Robert Osterloh
as Army Examining Doctor
Glenn Hardy
as Radio Interviewer at Landing Site
Tyler McVey
as Brady
House Peters Jr.
as M.P. Captain at Barnhardt's
George Lynn
as Conference Colonel Ryder
Dorothy Neumann
as Margaret, Tom's secretary
Wheaton Chambers
as Mr. Bleeker, jeweller
Carleton Young
as Zone Five Lieutenant Colonel
Harry Harvey
as The Cab Driver
Sammy Ogg
as Sammy, boy witness
Bess Flowers
as Lady Outside Jewelry Store
James Seay
as Government Man
Grady Galloway
as Radar Operator
Hassan Khayyam
as Indian Newscaster
John Barton
as British Newscaster
Stuart Whitman
as Sentry (scene deleted)
Rama Bai
as Scientific Delegate
John Burton
as British Radio Announcer
Bill Welsh
as Radio Announcer (voice)
Robert Wise
Director
Edmund H. North
Screenplay
Julian Blaustein
Producer
Bernard Herrmann
Original Music Composer
Leo Tover
Director of Photography
William Reynolds
Editor
Addison Hehr
Art Direction
Lyle R. Wheeler
Claude E. Carpenter
Set Decoration
Thomas Little
Perkins Bailey
Costume Design
Travilla
Charles LeMaire
Wardrobe Master
Fred Sersen
Special Effects
Harry Bates
Original Story
Ben Nye
Makeup Artist
