
A team of American astronauts leave their space station on the first mission to Mars, but the captain's religious beliefs may get in the way.
Cast

Walter Brooke
Gen. Samuel T. Merritt

Eric Fleming
Capt. Barney Merritt

Mickey Shaughnessy
Sgt. Mahoney

Phil Foster
Jackie Siegle

William Redfield
Roy Cooper

William Hopper
Dr. George Fenton

Benson Fong
Imoto

Ross Martin
Andre Fodor

Vito Scotti
Sanella

John Dennis
Donkersgoed

Michael Fox
Elsbach

Joan Shawlee
Rosie McCann

Iphigenie Castiglioni
Mrs. Heinz Fodor

Rosemary Clooney
Musical Number (archive footage) (uncredited)
Crew

Byron Haskin
Director
Barré Lyndon
Adaptation

George Worthing Yates
Adaptation

Philip Yordan
Adaptation
Chesley Bonestell
Book
Willy Ley
Book
Everett Douglas
Editor

Lionel Lindon
Director of Photography

George Pal
Producer
Frank Freeman Jr.
Associate Producer

Wally Westmore
Makeup Artist
John P. Fulton
Visual Effects
Paul K. Lerpae
Visual Effects
Ivyl Burks
Visual Effects
Jan Domela
Visual Effects
Irmin Roberts
Visual Effects

Van Cleave
Original Music Composer

Sam Comer
Set Decoration
Frank R. McKelvy
Set Decoration
J. McMillan Johnson
Art Direction
Hal Pereira
Art Direction
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