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Sylvia Sidney as Mrs. Verloc |
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Oskar Homolka as Karl Verloc - Her Husband |
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Desmond Tester as Stevie - Her Young Brother |
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John Loder as Ted |
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Joyce Barbour as Renee |
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Matthew Boulton as Superintendent Talbot |
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S. J. Warmington as Hollingshead |
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William Dewhurst as The Professor |
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Clare Greet as Mrs. Jones (uncredited) |
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Aubrey Mather as Greengrocer (uncredited) |
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Austin Trevor as Monocle Man (uncredited) |
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Charles Hawtrey as Studious Youngster (uncredited) |
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Martita Hunt as The Professor's Daughter (uncredited) |
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Torin Thatcher as Mr. Verloc's Visitor (uncredited) |
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Peter Bull as Mr. Verloc's Visitor (uncredited) |
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ალფრედ ჰიჩკოკი as Man Walking Past the Cinema as the Light Is Renewed |
| Directing | ალფრედ ჰიჩკოკი | Director |
| Writing | Joseph Conrad | Novel |
| Writing | Charles Bennett | Screenplay |
| Camera | Bernard Knowles | Director of Photography |
| Editing | Charles Frend | Editor |
| Crew | Albert Whitlock | Scenic Artist |
| Camera | Stephen Dade | Camera Operator |
| Art | Albert Jullion | Art Direction |
| Production | Michael Balcon | Producer |
| Production | Ivor Montagu | Associate Producer |
| Crew | E. V. H. Emmett | Additional Dialogue |
| Art | Oscar Friedrich Werndorff | Art Direction |
| Sound | Jack Beaver | Music |
| Sound | Hubert Bath | Music |
| Sound | Louis Levy | Music |
| Directing | Pen Tennyson | Assistant Director |
| Costume & Make-Up | Marianne | Wardrobe Designer |
| Directing | Alma Reville | Continuity |
| Sound | Angelina Cameron | Sound Recordist |
| Costume & Make-Up | Joe Strassner | Costume Designer |
| Sound | Louis Levy | Music Director |
| Crew | Walt Disney | Thanks |
| Writing | Helen Simpson | Dialogue |
| Writing | Ian Hay | Dialogue |
