"The first manned flight to Mars returns after having been out of communications since it had arrived on Mars. What would it reveal?"
Gerald Mohr
as Col. Thomas O`Bannion
Naura Hayden
as Dr. Iris Ryan
Les Tremayne
as Prof. Theodore Gettell
Jack Kruschen
as CWO Sam Jacobs
Paul Hahn
as Maj. Gen. George Treeger
J. Edward McKinley
as Prof. Paul Weiner
Tom Daly
as Dr. Frank Gordon
Don Lamond
as TV Newscaster / Narrator / Martian (voice)
Edward Innes
as Brig. Gen. Alan Prescott
Gordon Barnes
as Maj. Lyman Ross
Jack Haddock
as Lt. Col. Davis
Brandy Bryan
as Nurse Hayes
Joan Fitzpatrick
as Nurse Dixon
Duke Norton
as Dr. Muller
William Remick
as Dr. Hawley
David De Haven
as Air Force News Photographer
Arline Hunter
as Joan
Alean 'Bambi' Hamilton
as Joan's Friend
Fred Ross
Ib Melchior
Director
Screenplay
Sidney W. Pink
Norman Maurer
Producer
Paul Dunlap
Original Music Composer
Story
Stanley Cortez
Director of Photography
Ivan J. Hoffman
Editor
Lou Perlof
Associate Producer
Production Design
Hazel W. Hall
Script Supervisor
Robert Johannes
Camera Operator
Roger Mace
Still Photographer
Herman E. Townsley
Special Effects
Victor B. Appel
Sound Mixer
Mel Sternlight
Property Master
Arthur Wasson
Lillian Shore
Hairstylist
David Newell
Makeup Artist
Bert Eason
Assistant Camera