"Husband-and-wife scientists pick up a pie-in-the-sky TV message supposedly from Mars."
Peter Graves
as Chris Cronyn
Andrea King
as Linda Cronyn
Herbert Berghof
as Franz Calder
Marvin Miller
as Arjenian
Orley Lindgren
as Stewart Cronyn
Walter Sande
as Admiral Bill Carey
Willis Bouchey
as President
Morris Ankrum
as Secretary of Defense Sparks
George Blagoi
as Russian Official (uncredited)
Bayard Veiller
as Roger Cronyn
Tom Keene
as Maj. Gen. George Burdette
Colin Kenny
as Mine Owner
House Peters Jr.
as Dr. Boulting - Mitchell's Assistant
Harry Horner
Director
Joseph F. Biroc
Director of Photography
Mahlon Merrick
Original Music Composer
Murray Waite
Set Decoration
Emmett Emerson
Assistant Director
Anthony Veiller
Producer
John L. Balderston
Writer
Francis D. Lyon
Editor
Donald Hyde
Charles D. Hall
Art Direction
Victor B. Appel
Sound Engineer
Don L. Cash
Makeup Supervisor