Directed by
| Michael Powell | ||
Writing Credits (in alphabetical order)
| Jack Byrd | ... | (adaptation) |
| Syd Courtenay | ||
| Jacques Futrelle | ... | (novel) |
| Ian Hay | ... | (dialogue) |
| Stanley Haynes | ||
Cast (in credits order) verified as complete
| Hugh Williams | ... | Nick Barclay | |
| Jane Baxter | ... | Lady June Slade | |
| Ronald Ward | ... | Jimmy Slade | |
| Maurice Schwartz | ... | The Master (Paul Melchior) | |
| George Merritt | ... | Det. Insp. Mallory | |
| Henry Oscar | ... | Interpol Detective ("Voltaire") | |
| Donald Calthrop | ... | Dr. Harold E. Walpole | |
| Kitty Kelly | ... | Marian Weeks | |
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Wilfrid Caithness | ... | Raines - the butler |
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Peter Gawthorne | ... | Lord Slade |
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Gerald Fielding | ... | Harrah |
| Reginald Tate | ... | Allan Hayden | |
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Moyra Fagan | ... | Nada |
| Ivor Barnard | ... | Hewitt | |
| Barbara Everest | ... | Lady Slade | |
| Hal Gordon | ... | Sergeant | |
| Syd Crossley | ... | Policeman | |
| Rest of cast listed alphabetically: | |||
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Henry Caine | ... | Beetson - Nick's Butler (uncredited) |
| Esma Cannon | ... | Waitress (uncredited) | |
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Cyril Chamberlain | ... | Detective Thompson (uncredited) |
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Cameron Hall | ... | Cast Member (uncredited) |
Produced by
| Joe Rock | ... | producer |
Cinematography by
| Ernest Palmer | ||
Editing by
| Sam Simmonds | ||
Art Direction by
| George Provis | ||
Production Management
| Stanley Haynes | ... | production manager |
Sound Department
| W.H.O. Sweeney | ... | sound recordist (as William H.O. Sweeny) |
Camera and Electrical Department
| Erwin Hillier | ... | camera operator (as Erwin Hiller) |
| Skeets Kelly | ... | focus puller (uncredited) |
Music Department
| Cyril Ray | ... | musical director (as Cyril Raye) |
