Directed by
| José Ramón Larraz | ... | (as Joseph Larraz) |
Writing Credits
| José Ramón Larraz | ... | (screenplay) (as Joseph Larraz) and |
| Stanley Miller | ... | (screenplay) |
| Thomas Owen | ... | (story) (uncredited) |
Cast (in credits order)
| Angela Pleasence | ... | Helen | |
| Peter Vaughan | ... | Brady | |
| Lorna Heilbron | ... | Anne | |
| Nancy Nevinson | ... | Hannah | |
 |
Ronald O'Neil | ... | John (as Ronald O'Neill) |
|
|
Marie-Paule Mailleux | ... | Cora |
| Mike Grady | ... | Nick (as Michael Grady) | |
| Raymond Huntley | ... | Burke | |
Produced by
| Jean L. Dupuis | ... | producer (as Jean Dupuis) |
Music by
| John Scott | ||
Cinematography by
| Trevor Wrenn | ... | director of photography |
Editing by
| Brian Smedley-Aston | ||
Art Direction by
| Ken Bridgeman | ... | (as Kenneth Bridgeman) |
Makeup Department
| Bunty Phillips | ... | makeup artist |
| Bobbie Smith | ... | hairdresser |
Production Management
| Jack Rix | ... | production supervisor |
Second Unit Director or Assistant Director
| Chris Kenny | ... | second assistant director |
| Ted Morley | ... | assistant director |
Art Department
| Ron Coleman | ... | construction manager (as Ronald Coleman) |
| Chris Cook | ... | assistant art director |
| Bob Douglas | ... | property master (as Robert Douglas) |
| Bob Hedges | ... | property master (as Robert Hedges) |
Sound Department
| Ken Barker | ... | sound recordist |
| David Campling | ... | dubbing editor |
| Trevor Carless | ... | sound recordist |
| Barry McCormick | ... | dubbing editor |
| Dave Badger | ... | sound camera operator (uncredited) |
| Mike Chapman | ... | boom operator (uncredited) |
| Graham V. Hartstone | ... | re-recording mixer (uncredited) |
| Colin Kinnear | ... | sound maintenance (uncredited) |
Camera and Electrical Department
| Alan Boast | ... | camera operator |
| Barry Miller | ... | chief electrician |
| David Garfath | ... | focus puller (uncredited) |
| Dennis Lewis | ... | grip (uncredited) |
| Peter Versey | ... | clapper loader (uncredited) |
| George Courtney Ward | ... | still photographer (uncredited) |
Costume and Wardrobe Department
| Dulcie Midwinter | ... | wardrobe mistress |
Editorial Department
| Geoff R. Brown | ... | assistant editor |
Music Department
| John Scott | ... | conductor / orchestrator |
Script and Continuity Department
| Josie Fulford | ... | continuity |
Additional Crew
| Jeanne Ferber | ... | production secretary (uncredited) |
| Duncan Stewart | ... | production accountant (uncredited) |
