Directed by
| Alan Perry | ... | (directed by) |
Writing Credits
| Gerry Anderson | ... | (format) & |
| Sylvia Anderson | ... | (format) and |
| Reg Hill | ... | (format) |
| Tony Barwick | ... | (teleplay) |
Cast (in credits order) verified as complete
 |
Robert Swann | ... | Grant |
| Michael Billington | ... | Colonel Paul Foster | |
|
|
Gito Santana | ... | Alien |
| Harry Baird | ... | Lieutenant Mark Bradley | |
| Antonia Ellis | ... | Lieutenant Joan Harrington | |
| Dolores Mantez | ... | Lieutenant Nina Barry | |
| Ed Bishop | ... | Commander Ed Straker | |
| George Sewell | ... | Colonel Alec Freeman | |
| Suzan Farmer | ... | Tina Duval | |
|
|
Ray Armstrong | ... | Rescuer |
| David Weston | ... | Rescuer | |
| Rest of cast listed alphabetically: | |||
|
|
Mel Oxley | ... | Space Intruder Detector SID (voice) (uncredited) |
Produced by
| Gerry Anderson | ... | executive producer |
| Reg Hill | ... | producer (produced by) |
Music by
| Barry Gray | ... | (music composed by) |
Cinematography by
| Brendan J. Stafford | ... | (as Brendan Stafford) (lighting cameraman) |
Editing by
| Alan Killick | ||
Casting By
| Rose Tobias Shaw | ||
Art Direction by
| Bob Bell | ||
Costume Design by
| Sylvia Anderson | ... | (fashions: Century 21) |
Makeup Department
| Henry Montsash | ... | hairdresser |
| Basil Newall | ... | makeup artist |
Production Management
| Roger Connolly | ... | unit manager |
| Norman Foster | ... | production supervisor |
Second Unit Director or Assistant Director
| Ron Appleton | ... | assistant director |
Art Department
| Don Fagan | ... | instrumentation |
| Fred Gunning | ... | construction manager |
| Harry Solomons | ... | buyer |
| Keith Wilson | ... | assistant art director |
Sound Department
| Peter Pennell | ... | sound editor |
| John Peverill | ... | sound editor |
| Ken Rawkins | ... | sound recordist |
| J.B. Smith | ... | sound recordist |
Special Effects by
| David Mitton | ... | special effects (uncredited) |
Visual Effects by
| Jimmy Elliott | ... | visual effects assistant to supervisor (as Jim Elliott) |
| Frank Hollands | ... | visual effects production manager |
| Derek Meddings | ... | visual effects supervisor |
| Harry Oakes | ... | visual effects lighting cameraman |
| Mike Rainer | ... | visual effects camera operator |
| Mike Trim | ... | visual effects designer |
| Shaun Whittacker-Cook | ... | visual effects director |
Camera and Electrical Department
| Derek Black | ... | camera operator |
| John May | ... | gaffer (uncredited) |
Costume and Wardrobe Department
| Kim Martin | ... | wardrobe |
| Iris Richens | ... | wardrobe |
Music Department
| Barry Gray | ... | musical director |
| George Randall | ... | music editor |
| Bob Auger | ... | music engineer (uncredited) |
| Keith Grant | ... | music engineer (uncredited) |
| Barry Gray | ... | orchestrator (uncredited) |
| John Richards | ... | music engineer (uncredited) |
Script and Continuity Department
| Tony Barwick | ... | script editor |
| Doreen Soan | ... | continuity |
Additional Crew
| Frederick Buckman | ... | Cutting Room |
| Desmond Saunders | ... | assistant to producer (as Des Saunders) |
