The first manned expedition to Mars is invaded by an unknown life form, which stows away on the rescue ship.
Carruthers
Ann Anderson
Van Heusen
Mary Royce
Eric Royce
Calder
Purdue
Bob Finelli
Gino
Kienholz
It
Director
Creature Design
Set Decoration
Original Music Composer
Producer
Supervising Film Editor
Sound Effects Editor
Director of Photography
Assistant Director
Art Direction
Screenplay
Makeup Artist
Property Master