Directed by
| Henry Cass | ||
Writing Credits
| John Gilling | ... | (screenplay) |
| Norman Hudis | ... | (additional scenes) |
| Digby Wolfe | ... | (from an original story by) |
Cast (in credits order) verified as complete
| Dermot Walsh | ... | John Sewell | |
| Jane Barrett | ... | Mary Sewell | |
| John Colicos | ... | Dewar | |
 |
Marilyn Baker | ... | Ann Sewell |
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Anthony Pavey | ... | Michael Sewell |
| Alan MacNaughtan | ... | Det. Sgt. Daley (as Alan Macnaughtan/Alan Mac Naughtan) | |
| Jameson Clark | ... | Scotty (as Jamieson Clark) | |
| John Horsley | ... | Motor Cycle Policeman | |
| Marianne Stone | ... | Mrs. Simon | |
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Arnold Bell | ... | Sergeant at Road Block |
| Avril Angers | ... | Girl Hiker | |
| Bill Shine | ... | Man Hiker | |
| Peter Swanwick | ... | Travelling Salesman | |
| Hal Osmond | ... | Hospital Orderly | |
| Trevor Reid | ... | Dover Police Inspector | |
|
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Alan Robinson | ... | Dover Immigration Official |
| Rest of cast listed alphabetically: | |||
|
|
Aileen Lewis | ... | Bus Passenger (uncredited) |
|
|
Joe Wadham | ... | Ticket Collector (uncredited) |
Produced by
| Robert S. Baker | ... | producer |
| Monty Berman | ... | producer |
Music by
| Stanley Black | ... | (uncredited) |
Cinematography by
| Monty Berman | ... | director of photography |
Editing by
| Stanley Marks | ||
Art Direction by
| John Stoll | ||
Makeup Department
| Jimmy Evans | ... | makeup artist |
| Bill Griffiths | ... | hairdresser |
Production Management
| Clive Midwinter | ... | production manager |
Second Unit Director or Assistant Director
| Percy Hermes | ... | assistant director |
Sound Department
| W.H. Lindop | ... | sound recordist |
Camera and Electrical Department
| Desmond Davis | ... | camera operator |
Costume and Wardrobe Department
| Jean Fairlie | ... | wardrobe |
Music Department
| Stanley Black | ... | musical director |
| Bruce Campbell | ... | composer: additional music (uncredited) |
Script and Continuity Department
| Jane Buck | ... | continuity |
Additional Crew
| Ronald Liles | ... | production controller (as Ronald C. Liles) |
