After the first mission to Mars fails, a second ship is sent to pick up the survivors. However, only one man is left, and it appears he murdered the rest of the crew! When the space ship returns to Earth, the crew discovers a most unwelcome stow away--a living, breathing, hunting, killing creature! This low budget favorite has been sited as one of the inspirations for ALIEN (1979).

Marshall Thompson: American TV Actor/"Daktari"
Shawn Smith: American Actor
Kim Spalding: Actress/1950s-1960s
Ann Doran: American Actress
Paul Langton: American Actor
Robert Bice: 
Richard Benedict: American Actor/Director
Ray Corrigan: American Actor/Stunts
Dabbs Greer: Character Actor
Richard Hervey: Actor
Thom Carney: Actor

Edward L. Cahn: American Director/Producer

Jerome Bixby: Writer

Paul Sawtell: American Composer\D. 1970
Bert Shefter: American Composer

Grant Whytock: