 |
Patrick Wymark as Inspector Holloway |
 |
Margaret Johnston as Mrs. Von Sturm |
 |
John Standing as Mark Von Sturm |
 |
Alexander Knox as Frank Saville |
 |
Judy Huxtable as Louise Saville |
 |
Don Borisenko as Donald Loftis |
 |
Thorley Walters as Martin Roth |
 |
Robert Crewdson as Victor Ledoux |
 |
Colin Gordon as Dr. Glyn |
 |
Tim Barrett as Morgan |
 |
Frank Forsyth as Tucker |
|
Olive Gregg as Mary |
 |
Harold Lang as Briggs |
|
Gina Gianelli as Gina |
 |
Peter Diamond as Junk Yard Man |
 |
John Harvey as Reinhardt Klermer |
| Directing | Freddie Francis | Director |
| Writing | Robert Bloch | Writer |
| Production | Max Rosenberg | Producer |
| Production | Milton Subotsky | Producer |
| Sound | Elisabeth Lutyens | Original Music Composer |
| Camera | John Wilcox | Director of Photography |
| Editing | Oswald Hafenrichter | Editor |
| Art | William Constable | Art Direction |
| Art | Scott Slimon | Set Decoration |
| Costume & Make-Up | Jill Carpenter | Makeup Artist |
| Costume & Make-Up | Henry Montsash | Hairstylist |
| Production | Ted Wallis | Production Manager |
| Crew | Ted Samuels | Special Effects |
| Sound | Philip Martell | Conductor |
| Costume & Make-Up | Mary Gibson | Wardrobe Supervisor |
