Directed by
| Alan Gibson | ||
Writing Credits
| Jimmy Sangster | ... | (screenplay) and |
| Alfred Shaughnessy | ... | (screenplay) |
| Alfred Shaughnessy | ... | (from an original screenplay by) |
| Michael Reeves | ... | (from an original screenplay by) (uncredited) |
| Michael Reeves | ... | (idea) (uncredited) |
Cast (in credits order) complete, awaiting verification
| Stefanie Powers | ... | Susan Roberts | |
| James Olson | ... | Georges Ryman / Jacques Ryman | |
| Margaretta Scott | ... | Danielle Ryman | |
| Jane Lapotaire | ... | Lillianne | |
| Joss Ackland | ... | Carter | |
 |
Kirsten Lindholm | ... | Catherine (as Kirsten Betts) |
Produced by
| Michael Carreras | ... | producer |
Music by
| Malcolm Williamson | ||
Cinematography by
| Paul Beeson | ... | director of photography |
Editing by
| Chris Barnes | ||
Art Direction by
| Scott MacGregor | ||
Makeup Department
| Ivy Emmerton | ... | hairdresser |
| Stella Morris | ... | make up |
Production Management
| Hugh Harlow | ... | production manager |
Second Unit Director or Assistant Director
| Jack Martin | ... | assistant director |
Art Department
| Ron Baker | ... | property buyer |
| Arthur Banks | ... | construction manager |
| Freda Pearson | ... | set dresser |
| Don Picton | ... | assistant art director |
| Michael Finlay | ... | painter (uncredited) |
Sound Department
| Len Abbott | ... | dubbing mixer |
| Claude Hitchcock | ... | sound mixer |
| Roy Hyde | ... | sound editor |
| A.W. Lumkin | ... | recording supervisor |
Camera and Electrical Department
| John Winbolt | ... | camera operator |
| Mike Brewster | ... | clapper loader (uncredited) |
Costume and Wardrobe Department
| Rebecca Breed | ... | wardrobe (as Jackie Breed) |
Editorial Department
| Geoffrey Mackrill | ... | assistant dubbing editor (uncredited) |
Music Department
| Tubby Hayes | ... | musician: solo saxophone |
| Clive Lithgoe | ... | musician: solo piano (as Clive Lythgoe) |
| London Symphony Orchestra | ... | music played by (as The London Symphony Orchestra) |
| Philip Martell | ... | conductor |
Script and Continuity Department
| Lilian Lee | ... | continuity (as Lillian Lee) |
Additional Crew
| Sally Pardo | ... | production secretary (uncredited) |
