Directed by
| John Guillermin | ||
Writing Credits
| Francis Durbridge | ... | (story) |
| A.R. Rawlinson | ... | (screenplay) and |
| John Guillermin | ... | (screenplay) |
Cast (in credits order) complete, awaiting verification
| Guy Rolfe | ... | Mark Fenton | |
| Lisa Daniely | ... | Lisa Durand (nurse) | |
| Patricia Dainton | ... | Sister Rogers | |
| Sydney Tafler | ... | Wade | |
| Ballard Berkeley | ... | Inspector Austin | |
| Anton Diffring | ... | Schroder | |
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Michael Golden | ... | Harrison |
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James Raglan | ... | Sir Oliver Peters |
| Avice Landone | ... | Mrs. Terry | |
| Brian Worth | ... | Geoffrey Terry | |
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Eric Berry | ... | Colonel Williams |
| Edward Dentith | ... | Sergeant Lewis (as Edward Dain) | |
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Alexis Chesnakov | ... | Ship's Captain |
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Ann Bennett | ||
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Jean Hardwicke | ||
| Rest of cast listed alphabetically: | |||
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John Adams | ... | Detective (uncredited) |
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Derek Aylward | ... | (uncredited) |
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Fred Davis | ... | Detective (uncredited) |
| William Franklyn | ... | Dr. Gillespie (uncredited) | |
| Desmond Llewelyn | ... | Police Constable at barrier (uncredited) | |
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John Wilder | ... | Detective (uncredited) |
Produced by
| Ernest G. Roy | ... | producer |
Music by
| Wilfred Burns | ||
Cinematography by
| Gerald Gibbs | ... | director of photography |
Editing by
| Joseph Sterling | ||
Art Direction by
| John Stoll | ||
Makeup Department
| Joan Carpenter | ... | hair stylist |
| Wally Schneiderman | ... | principal make-up (as W. Schneiderman) |
Production Management
| E.S. Laurie | ... | production manager |
Second Unit Director or Assistant Director
| Denis Johnson | ... | assistant director |
Sound Department
| Jack Miller | ... | sound recordist (as J. Miller) |
Camera and Electrical Department
| Noel Rowland | ... | camera work |
Music Department
| Wilfred Burns | ... | conductor |
