| Episode | Credits | Transcript |
Cast[]
- Commander John Koenig - Martin Landau
- Doctor Helena Russell - Barbara Bain
- Maya - Catherine Schell
- Tony Verdeschi - Tony Anholt
- Yasko - Yasuko Nagazumi
- Alien Strong - David Jackson
- Alien Invisible - Roy Marsden
- Alien Transport - Godfrey James
- Thunder Voice - David Jackson
- Operative - Annie Lambert
- Command Center operative - Jenny Cresswell[1]
Crew[]
- Directed by Val Guest
- Written by Fred Freiberger (as Charles Woodgrove)
- Produced by Gerry Anderson, Fred Freiberger and F. Sherwin Green
- Music by Derek Wadsworth
- Cinematography by Frank Watts
- Film Editing by Mike Campbell
- Casting By Lesley De Pettit (as Lesley de Pettitt)
- Production Design by Keith Wilson
- Costume Design by Emma Porteous
Makeup Department[]
- Jan Dorman: Hairdresser
- Eddie Knight: Makeup artist
- Basil Newall: Makeup artist
Production Management[]
- Donald Toms: Production manager
Second Unit Director or Assistant Director[]
- Ken Baker: Assistant director
- David Lane: Second unit director (uncredited)
Art Department[]
- Michael Ford: Assistant art director
- Bill Waldron: Construction manager
Sound Department[]
- Roy Baker: Sound supervisor
- Charles Crafford: Sound editor
- Claude Hitchcock: Sound recordist
Special Effects[]
- Nick Allder: Lighting cameraman
- Michael S.E. Downing: Electronics
- Brian Johnson: Special effect designer / special effects director
- David Litchfield: Camera operator
- Andrew Kelly: Model maker (uncredited)
Camera and Electrical Department[]
- Neil Binney: Camera operator
- John May: Gaffer (uncredited)
- Robin McDonald: Focus puller (uncredited)
Costume and Wardrobe Department[]
- Eve Faloon: Wardrobe
Music Department[]
- Alan Willis: Music editor
Script and Continuity Department[]
- Doreen Soan: Continuity
Transportation Department[]
- Ray Atkins: Driver (uncredited)
- Steve Smith: Driver (uncredited)
- Doug Wetherley: Driver (uncredited)
Additional Crew[]
- Terence Connors: Financial director
- Reg Hill: Production executive
- David Lane: Technical director[2]