Directed by
| David Cobham | ||
Writing Credits (in alphabetical order)
| Simon Campbell-Jones | ||
Cast (in credits order)
| Russell Napier | ... | Narrator (voice) | |
| Rest of cast listed alphabetically: | |||
| Martin Boddey | ... | Volunteer Warning Officer (uncredited) | |
 |
Tom Bowman | ... | 'Papa One' - Chief Observer (uncredited) |
|
|
Michael Collins | ... | Leading Scientist (uncredited) |
| Arnold Diamond | ... | Chief Sector Warning Officer (uncredited) | |
Produced by
| Ronald H. Riley | ... | producer |
Cinematography by
| Fred Gamage | ... | (photography) |
Editing by
| Michael Barden | ||
Sound Department
| Michael Shah Dayan | ... | dubbing editor |
| Ted Drake | ... | sound |
| Richard A. Smith | ... | sound (as Dick Smith) |
Editorial Department
| Kenneth F. Rowles | ... | assistant editor (uncredited) |
Script and Continuity Department
| Gladys Goldsmith | ... | continuity |
