In a small English village everyone suddenly falls unconscious. When they awake every woman of child bearing age is pregnant. The resulting children have the same strange blond hair, eyes and a strong connection to each other.
| Directing | Wolf Rilla | Director |
| Sound | Ron Goodwin | Original Music Composer |
| Writing | John Wyndham | Novel |
| Camera | Geoffrey Faithfull | Director of Photography |
| Writing | Ronald Kinnoch | Screenplay |
| Editing | Gordon Hales | Editor |
| Writing | Wolf Rilla | Screenplay |
| Writing | Stirling Silliphant | Screenplay |
| Production | Ronald Kinnoch | Producer |
| Costume & Make-Up | Joan Johnstone | Hairstylist |
| Costume & Make-Up | Eric Aylott | Makeup Artist |
| Production | Denis Johnson | Production Manager |
| Visual Effects | Tom Howard | Visual Effects |
| Art | Ivan King | Art Direction |
