Directed by
| Sidney Hayers | ||
Writing Credits (in alphabetical order)
| Ivan Goff | ... | (written by) |
| Philip Levene | ... | (story) |
| Ben Roberts | ... | (written by) |
Cast (in credits order) verified as complete
| Jon Finch | ... | Det. Insp. Lomax | |
| Judy Geeson | ... | Helen | |
| Christopher Lee | ... | Dr. Stephen Hayward | |
| Tony Beckley | ... | Sgt. Greene | |
| Dilys Hamlett | ... | Julia Hayward | |
| Jane Merrow | ... | Mary Dawson | |
| Colin Jeavons | ... | Bob Dawson | |
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David Trevena | ... | Johnson |
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Adrian Cairns | ... | Morgan |
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Daphne Neville | ... | Nurse Fisher |
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Hugh Smith-Marriott | ... | Dr. Chapman |
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Hubert Tucker | ... | Ronalds |
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David Langford | ... | Gray |
Produced by
| Patrick Dromgoole | ... | executive producer |
| Peter Miller | ... | producer |
| Michael Towers | ... | associate producer |
Music by
| Laurie Johnson | ||
Cinematography by
| Bob Edwards | ||
Editing by
| David Williams | ||
Art Direction by
| Kenneth Jones | ... | (as Ken Jones) |
Set Decoration by
| Ken Bridgeman | ||
Makeup Department
| Christine Penwarden | ... | makeup artist |
Production Management
| F. Sherwin Green | ... | production supervisor (as Frank S. Green) |
Second Unit Director or Assistant Director
| Ray Frift | ... | first assistant director |
| Andrew Wilson | ... | second assistant director |
Art Department
| George Noonan | ... | props |
Sound Department
| Mike Davey | ... | sound recordist |
| John Hayward | ... | re-recording mixer |
| Peter Keen | ... | dubbing editor |
| Gordon K. McCallum | ... | dubbing mixer |
Stunts
| Rick Lester | ... | stunt driver |
| Alan Stuart | ... | stunts |
Camera and Electrical Department
| Roger Pearce | ... | camera operator |
| Peter Thornton | ... | camera focus |
Costume and Wardrobe Department
| John Brady | ... | wardrobe |
| Eve Faloon | ... | wardrobe |
Editorial Department
| John W. Carr | ... | assistant editor (as John Carr) |
| Barry Peters | ... | supervising editor |
Location Management
| Keith Knott | ... | location manager |
Music Department
| Paul B. Clay | ... | music coordinator (as Paul Clay) |
Script and Continuity Department
| Annie Rees | ... | continuity |
Additional Crew
| Robert Faloon | ... | production finance controller |
| Glynis Lloyd | ... | production secretary |
| Monica Rogers | ... | production secretary |
