| Episode | Credits | Transcript |
Cast[]
- Martin Landau as Commander John Koenig
- Barbara Bain as Dr. Helena Russell
- Barry Morse as Prof. Victor Bergman
- Judy Geeson as Regina Kesslann
- Prentis Hancock as Paul Morrow
- Clifton Jones as David Kano
- Zienia Merton as Sandra Benes
- Anton Phillips as Dr. Mathias
- Nick Tate as Alan Carter
Uncredited[]
- Tony Allyn as Security Guard
- Emily Bolton as Operative June
- Loftus Burton, Andy Dempsey, Alan Harris, Robert Phillips and Michael Stevens as Main Mission Operatives
- Barbara Kelly as Computer Voice
- Claire Mclellan as Morrow's Daughter
- Quentin Pierre as Security Guard Pierre
- Alan Roberto as Morrow's Son
- Suzanne Roquette as Tanya Aleksandr
Crew[]
- Directed By David Tomblin
- Written By Johnny Byrne
- Produced by Gerry Anderson (Executive Producer) and Sylvia Anderson
- Music by Barry Gray
- Cinematography by Frank Watts
- Film Editing by Derek Chambers (Credited as Derek Hyde Chambers)
- Supervising Editor: David Lane (Credited as Dave Lane)
- Casting by Michael Barnes
- Production Design by Keith Wilson
- Hair Designer: Helene Bevan
- Makeup Artist: Basil Newall
- Production Manager: Ron Fry
- Assistant Director: Ken Baker
- Scenic Artist: Bill Beavis
- Props: John Chisholm
- Sound Recordist: David Bowen
- Sound Editor: Roy Lafbery
- Special Effects by Nick Allder
- Electronics: Michael S.E. Downing
- Camera Operator: Frank Drake
- Special Effects: Brian Johnson
- Lighting Cameraman: Harry Oakes
- Model Maker: Andrew Kelly
- Stunt Double for Martin Landau: Rick Lester
- Camera Operator: Neil Binney
- Assistant Camera: Mike Tomlin
- Costumes: Moon City: Rudi Gernreich
- Wardrobe: Eileen Sullivan
- Music Associate: Vic Elms
- Music Editor: Alan Willis
- Script Editor: Edward di Lorenzo (Credited as Edward Di Lorenzo)
- Continuity: Gladys Goldsmith
- Drivers: Ray Atkins, Steve Smith and Doug Wetherley
- Story Consultant: Christopher Penfold