| Person | Type | Job | Role(s) |
|---|---|---|---|
 Basil Keys | Crew | Directing | Assistant Director |
 Charles Bennett | Crew | Writing | Screenplay |
Clifton Parker | Crew | Sound | Original Music Composer |
Edward Scaife | Crew | Camera | Director of Photography |
Frank Bevis | Crew | Production | Producer |
George Blackwell | Crew | Crew | Special Effects |
Hal E. Chester | Crew | Writing | Screenplay, Executive Producer |
 Jacques Tourneur | Crew | Directing | Director |
 Ken Adam | Crew | Art | Production Design |
 M.R. James | Crew | Writing | Short Story |
Michael Gordon | Crew | Editing | Editor |
Muir Mathieson | Crew | Sound | Music Director |
Peter Glazier | Crew | Art | Assistant Art Director |
Robert Lennard | Crew | Production | Casting |
S.D. Onions | Crew | Visual Effects | Visual Effects Camera |
Wally Veevers | Crew | Crew | Special Effects |
Arthur Bradburn | Crew | Sound | Sound Recordist |
Charles Crafford | Crew | Sound | ADR & Dubbing, Sound Effects Editor |
Betty Lee | Crew | Costume & Make-Up | Hairstylist |
R. L. M. Davidson | Crew | Production | Production Manager |
Pamela Gayler | Crew | Directing | Continuity |
Anthony Richmond | Cast | Actor | |
Arthur Howell | Cast | Actor | |
 Athene Seyler | Cast | Actress | Mrs. Karswell |
 Ballard Berkeley | Cast | Actor | |
 Brian Wilde | Cast | Actor | Rand Hobart |
 Charles Lloyd Pack | Cast | Actor | Chemist |
 Dana Andrews | Cast | Actor | Dr. John Holden |
 Ewan Roberts | Cast | Actor | Lloyd Williamson |
Janet Barrow | Cast | Actress | Mrs. Hobart |
Jimmy Cains | Cast | ||
 John Salew | Cast | Actor | Librarian |
Leonard Sharp | Cast | Actor | |
 Liam Redmond | Cast | Actor | Professor Mark O'Brien |
 Lloyd Lamble | Cast | Actor | Detective Simmons |
Lynn Tracy | Cast | Air Hostess | |
 Maurice Denham | Cast | Actor | Professor Henry Harrington |
 Michael Peake | Cast | Actor | |
 Niall MacGinnis | Cast | Actor | Dr. Julian Karswell |
Paul Phillips | Cast | ||
 Peggy Cummins | Cast | Actress | Joanna Harrington |
 Percy Herbert | Cast | Actor | Farmer |
 Peter Elliott | Cast | Actor | Professor K.T. Kumar |
Peter Hobbes | Cast | Superintendent | |
 Reginald Beckwith | Cast | Actor | Mr. Meek |
 Richard Leech | Cast | Actor | Inspector Mottrarn |
Robert Brooks Turner | Cast | Actor | |
 Rosamund Greenwood | Cast | Actress | Mrs. Meek |
Shay Gorman | Cast | Actor | |
 Wallace Bosco | Cast | Actor | |
Walter Horsbrugh | Cast | Actor | |
Richard Duke | Cast | ||
Daniel Brown | Cast | ||
Hyma Beckley | Cast | ||
 John Harvey | Cast | Actor | Hobart's Brother |
Ernest Blyth | Cast | ||
Anthony John | Cast | ||
Terry Sartain | Cast | ||
Leonard Llewellyn | Cast | ||
Bert Simms | Cast | ||
Alan Beaton | Cast | ||
Peggy Scott Sanders | Cast | ||
Laurence Hepworth | Cast | ||
| Person | Type | Job | Role(s) |
