| Episode | Credits | Transcript |
Cast[]
- Martin Landau as Commander John Koenig
- Barbara Bain as Dr. Helena Russell
- Barry Morse as Prof. Victor Bergman
- Roy Dotrice as Commissioner Simmonds
- Christopher Lee as Captain Zantor
- Prentis Hancock as Paul Morrow
- Clifton Jones as David Kano
- Zienia Merton as Sandra Benes
- Anton Phillips Dr. Mathias
- Nick Tate as Alan Carter
Uncredited[]
- Tony Allyn as Security Guard
- Emily Bolton as Operative June
- Sarah Bullen as Operative Kate
- Loftus Burton, Andy Dempsey, Roy Everson, Alan Harris, Joy Harrison and Robert Phillips as Main Mission Operatives
- Christine Hewett, Rhonda Parker and Angela Staines as Kaldorians
- Quentin Pierre as Pierce Quinton
- Suzanne Roquette as Tanya Aleksandr
Crew[]
- Directed By Charles Crichton
- Written By Anthony Terpiloff
- Produced By Gerry Anderson (Executive Producer) and Sylvia Anderson
- Music By Barry Gray
- Cinematography By Frank Watts
- Film Editing By Mike Campbell
- Supervising Editor: David Lane (As Dave Lane)
- Casting By Michael Barnes
- Production Design By Keith Wilson
Makeup Department[]
- Hair Designer: Helene Bevan
- Makeup Artist: Ann Cotton
Art Department[]
- Scenic Artist: Bill Beavis (Uncredited)
- Props: John Chisholm (Uncredited)
Sound Department[]
- Sound Recordist: David Bowen
- Sound Editor: Peter Pennell
Special Effects[]
- Special Effects Director: Nick Allder
- Electronics: Michael S.E. Downing
- Camera Operator: Frank Drake
- Special Effects: Brian Johnson
- Lighting Cameraman: Harry Oakes
- Model Maker: Andrew Kelly (Uncredited)
Camera And Electrical Department[]
- Camera Operator: Neil Binney
Costume And Wardrobe Department[]
- Costumes: Moon City: Rudi Gernreich
- Wardrobe: Eileen Sullivan
Music Department[]
- Music Associate: Vic Elms
- Music Editor: Alan Willis
Script And Continuity Department[]
- Script Editor: Edward di Lorenzo
- Continuity: Gladys Goldsmith
Transportation Department[]
- Ray Atkins, Steve Smith and Doug Wetherley as Drivers
Additional Crew[]
- Production Manager: Ron Fry
- Assistant Director: Ken Baker
- Story Consultant: Christopher Penfold