The inhabitants of Ganymede need to find mates from another world or they will become extinct. They soon discover a suitable breeding stock amongst the females of planet Earth.
Cast
John Saxon
Dr. Jack Costain
Patricia Haines
Ann Barlow
Alfred Burke
Detective Supt. Hartley
Maurice Denham
Dr. Morley
John Carson
The Major
Ballard Berkeley
Cmdr. Savage
Stanley Meadows
Det. Tom Grant
Barbara French
Joyce Malone
Robert Crewdson
Medra
Aubrey Morris
Thorburn
Jack Watson
The Sergeant
Tony Wager
Pvt. Higgins
David Gregory
Pvt. Jones
Marianne Stone
Madge Lilburn
Warren Mitchell
Reg Lilburn
Geoffrey Lumsden
Col. Davy
Douglas Livingstone
2nd R / T soldier
Tom Gill
Police Commissioner's secretary
Vincent Harding
First R/T Soldier
Romo Garrara
Lieutenant
John Sherlock
TV Newscaster
Crew
John Gilling
Director
Jim O'Connolly
Screenplay
Frank Crisp
Novel
Philip Barnikel
Editor
Stephen Dade
Director of Photography
John I. Phillips
Executive Producer
Ronald Liles
Producer
Joyce James
Hairstylist
Bunty Phillips
Makeup Artist
Barbara Hopkins
Sound
Johnny Gregory
Original Music Composer
Harry White
Art Direction
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