The Dorcons/Credits

Cast

 * Martin Landau as Commander John Koenig
 * Barbara Bain as Dr. Helena Russell
 * Catherine Schell as Maya
 * Tony Anholt as Tony Verdeschi
 * Nick Tate as Alan Carter
 * Patrick Troughton as Archon
 * Ann Firbank as Consul Varda
 * Gerry Sundquist as Malic
 * Alibe Parsons as Alibe
 * Laurence Harrington as Stewart
 * Kevin Sheehan as 1st Dorcon Operative
 * Michael Halsey as 1st Dorcon Soldier
 * Hamish Patrick as Command Center Alphan
 * Hazel McBride as Female Medical Officer

Uncredited

 * Del Baker and Les White as Dorcon Soldiers
 * Peter Brayham, Maxwell Craig, Frank Henson and Quentin Pierre as Security Guards
 * Jenny Cresswell as Maya Transformation
 * Chris Diggins as Alphan
 * Harry Fielder as Medic
 * Roy Scammell as Space Animal

Crew

 * Directed by Tom Clegg
 * Written by Johnny Byrne
 * Produced by Gerry Anderson (Producer), Fred Freiberger (Producer), F. Sherwin Green (Associate producer)
 * Music by Derek Wadsworth
 * Cinematography by Frank Watts
 * Film Editing by Alan Killick
 * Casting by Lesley De Pettit
 * Production Design by Keith Wilson
 * Costume Design by Emma Porteous
 * Hairdressers: Jeanette Freeman and Mike Lockey
 * Makeup Artists: Basil Newall and Connie Reeve
 * Production Manager: Donald Toms
 * Assistant Director: Robert Lynn
 * Second Unit Director: David Lane
 * Assistant Art Director: Michael Ford
 * Construction Manager: Bill Waldron
 * Sound Supervisor: Roy Baker
 * Sound Editors: Jack T. Knight and Peter Pennell
 * Sound Recordist: Brian Marshall
 * Lighting Cameraman: Nick Allder
 * Electronics: Michael S.E. Downing
 * Special Effects Designer / Director: Brian Johnson
 * Camera Operator: David Litchfield
 * Model Makers: Andrew Kelly and Martin Bower
 * Camera Operator: Neil Binney
 * Focus Puller: George Watts
 * Gaffer: John May
 * Wardrobe: Eileen Sullivan
 * Music Editor: Alan Willis
 * Continuity: Doreen Soan
 * Production Executive: Reg Hill
 * Technical Director: David Lane