Greg Collinson
Doug McClure
Charles Aitken
Peter Gilmore
Briggs
Robert Brown
Atsil
Cyd Charisse
Atraxon
Daniel Massey
Atlantean (uncredited)
Barrie Holland
Captain Daniels
Shane Rimmer
Delphine
Lea Brodie
Atmir
Michael Gothard
Grogan
Hal Galili
Fenn
John Ratzenberger
Jacko
Derry Power
Professor Aitken
Donald Bisset
Sandy
Ashley Knight
Visual Effects Supervisor
John Richardson
Director
Kevin Connor
Producer
Screenplay
Brian Hayles
John Dark
Original Music Composer
Michael Vickers
Director of Photography
Alan Hume
Editor
Bill Blunden
Casting
Allan Foenander
Art Direction
Jack Maxsted
Hairstylist
Joan Carpenter
Makeup Artist
Robin Grantham
Creature Design
Roger Dicken
Production Supervisor
Graham Easton
Camera Operator
Derek V. Browne
Sound Editor
Jim Atkinson
Assistant Director
Ray Frift
Location Manager
Bryan Coates
Continuity
Doreen Soan
Set Dresser
Alan Cassie
Construction Manager
Syd Nightingale
Special Effects
George Gibbs
Property Master
Bert Hearn
Arthur Wooster
Assistant Camera
Mike Frift
Matte Painter
Cliff Culley
Sound
George Stephenson
Ken Barker
Assistant Editor
Rita Burgess
Wardrobe Master
Monica Howe
Lorna Hillyard
Stunt Coordinator
Marc Boyle
Production Design
Elliot Scott