| Person | Type | Job | Role(s) |
|---|---|---|---|
 Anthony Masters | Crew | Art | Art Direction |
 Buxton Orr | Crew | Sound | Original Music Composer |
Charles F. Vetter | Crew | Production | Producer |
Eileen Warwick | Crew | Costume & Make-Up | Hairstylist |
Geoffrey Faithfull | Crew | Camera | Director of Photography |
Jean Scott Rogers | Crew | Writing | Screenplay |
John Croydon | Crew | Production | Producer |
Peter Mayhew | Crew | Editing | Editor, Associate Producer |
 Robert Day | Crew | Directing | Director |
Wally Schneiderman | Crew | Costume & Make-Up | Makeup Artist |
Maurice Askew | Crew | Crew | Sound Recordist |
Richard Gordon | Crew | Production | Executive Producer |
Peter Bolton | Crew | Directing | Assistant Director |
George Mills | Crew | Production | Production Manager |
Cyril Swern | Crew | Sound | Sound Recordist |
 Michael Stevenson | Crew | Directing | Third Assistant Director |
Susan Dyson | Crew | Directing | Continuity |
 Adrienne Corri | Cast | Actress | Rachel |
 Basil Dignam | Cast | Actor | Hospital Chairman |
 Bernard Archard | Cast | Actor | Hospital Official |
 Betta St. John | Cast | Actress | Susan |
 Boris Karloff | Cast | Actor | Dr. Thomas Bolton |
 Charles Lloyd Pack | Cast | Actor | Hardcastle |
 Christopher Lee | Cast | Actor | Resurrection Joe |
 Desmond Llewelyn | Cast | Actor | Operations Assistant (uncredited) |
 Finlay Currie | Cast | Actor | Supt. Charles Matheson |
 Francis de Wolff | Cast | Actor | Black Ben |
 Francis Matthews | Cast | Actor | Jonathan Bolton |
 Frank Pettingell | Cast | Actor | Mr. Blount |
 Howard Lang | Cast | Actor | Chief Inspector |
 Marianne Stone | Cast | Actress | Arrested Woman (uncredited) |
 Nigel Green | Cast | Actor | Insp. Donovan |
 Skip Martin | Cast | Actor | (uncredited) |
 Yvonne Romain | Cast | Actress | Rosa (as Yvonne Warren) |
| Person | Type | Job | Role(s) |
