| Person | Type | Job | Role(s) |
|---|---|---|---|
 Denis Johnson | Crew | Production | Production Manager |
Geoffrey Faithfull | Crew | Camera | Director of Photography |
Gordon Hales | Crew | Editing | Editor |
Ivan King | Crew | Art | Art Direction |
Joan Johnstone | Crew | Costume & Make-Up | Hairstylist |
John Wyndham | Crew | Writing | Novel |
Ron Goodwin | Crew | Sound | Original Music Composer |
Ronald Kinnoch | Crew | Production | Producer, Screenplay |
 Stirling Silliphant | Crew | Writing | Screenplay |
Tom Howard | Crew | Visual Effects | Visual Effects |
 Wolf Rilla | Crew | Directing | Director, Screenplay |
Eric Aylott | Crew | Costume & Make-Up | Makeup Artist |
 Michael Stevenson | Crew | Directing | Third Assistant Director |
Alexander Archdale | Cast | Actor | Coroner |
 Barbara Shelley | Cast | Actress | Anthea Zellaby |
 Bernard Archard | Cast | Actor | Vicar |
 Charlotte Mitchell | Cast | Actress | Janet Pawle |
Denis Gilmore | Cast | Actor | Keith older brother (uncredited) |
Diane Aubrey | Cast | Actress | WRAC Secretary |
 George Sanders | Cast | Actor | Gordon Zellaby |
 Jenny Laird | Cast | Actress | Mrs. Harrington |
 John Phillips | Cast | Actor | General Leighton |
 John Stuart | Cast | Actor | Professor Smith |
June Cowell | Cast | Child | |
Keith Pyott | Cast | Actor | Dr. Carlisle |
 Laurence Naismith | Cast | Actor | Dr. Willers |
 Lesley Scoble | Cast | Actress | Child |
 Martin Stephens | Cast | Actor | David Zellaby |
 Michael Gwynn | Cast | Actor | Alan Bernard |
 Peter Vaughan | Cast | Actor | P.C. Gobby |
 Richard Vernon | Cast | Actor | Edgar Hargraves |
 Richard Warner | Cast | Actor | Harrington |
 Rosamund Greenwood | Cast | Actress | Miss Ogle |
Susan Richards | Cast | Actress | Mrs. Plumpton |
 Thomas Heathcote | Cast | Actor | James Pawle |
 Tom Bowman | Cast | Actor | Pilot |
 Gerald Paris | Cast | Sapper | |
Sarah Long | Cast | Actress | Evelyn Harrington |
John Kelly | Cast | Actor | Child |
Teri Scoble | Cast | Actress | Child |
Sheila Robins | Cast | Nurse | |
Paul Norman | Cast | Village Child | |
Anthony Harrison | Cast | Lieutenant | |
Billy Lawrence | Cast | Actor | Village Child |
Brian Smith | Cast | Village Child | |
Pamela Buck | Cast | Actress | Milly Hughes |
Linda Bateson | Cast | Child | |
Carla Cura | Cast | Child | |
Mark Mileham | Cast | Actor | Child |
Roger Malik | Cast | Child | |
Elizabeth Munden | Cast | Child | |
Peter Preidel | Cast | Child | |
Peter Taylor | Cast | Child | |
Howard Knight | Cast | Actor | Child |
Janice Howley | Cast | Village Child | |
Robert Marks | Cast | Village Child | |
John Bush | Cast | Village Child | |
| Person | Type | Job | Role(s) |
