 |
Gregory Ratoff as Alexei Leshki |
 |
Ronald Squire as Sir Charles Farringdon |
 |
Binnie Barnes as Valerie Petrovna |
 |
Tamara Desni as Marie-Louise |
 |
Barry MacKay as Michael Farringdon |
 |
Anthony Bushell as Rex Farringdon |
| Production | Richard Wainwright | Producer |
| Directing | Phil Rosen | Director |
| Editing | Hugh Stewart | Editor |
| Writing | Dorothy Farnum | Adaptation |
| Writing | Alma Reville | Screenplay |
| Production | Joe Rock | Associate Producer |
| Writing | Dennis Wheatley | Novel |
| Sound | Louis Levy | Original Music Composer |
| Sound | Charles Williams | Original Music Composer |
| Writing | Dorothy Farnum | Writer |
