Directed by
| David MacDonald | ... | (as David Macdonald) |
Writing Credits
| Roger MacDougall | ... | (original screenplay) |
Cast (in credits order)
| Alastair Sim | ... | Samuel Blight | |
| Barry K. Barnes | ... | Larry Preston | |
| Diana Churchill | ... | Janet Preston | |
| Edward Chapman | ... | Detective Inspector Bray | |
| Ruby Miller | ... | Mrs. Honeycombe | |
| Austin Trevor | ... | Heinreks | |
| Leo Genn | ... | Another Agent | |
| Geoffrey Sumner | ... | Detective Delacroix | |
 |
Glen Alyn | ... | Agent Posing as Reporter |
| Torin Thatcher | ... | Karl Bergsen | |
| Carl Jaffe | ... | Foreign Agent | |
| Cathleen Nesbitt | ... | Miss. Sampson | |
| Cyril Smith | ... | Barber | |
| Rest of cast listed alphabetically: | |||
| James Harcourt | ... | Judge (uncredited) | |
Produced by
| K.C. Alexander | ... | producer |
Music by
| Francis Chagrin | ||
Cinematography by
| Ernest Palmer | ... | (photography) |
Editing by
| Douglas Myers | ... | (as Dug Myers) |
Art Direction by
| James A. Carter | ... | (as James Carter) |
Production Management
| Louis London | ... | production manager |
Second Unit Director or Assistant Director
| George Pollock | ... | assistant director |
Sound Department
| Leo Wilkins | ... | sound recorder |
Camera and Electrical Department
| Cecil Cooney | ... | camera |
