Directed by
| Reginald Denham | ||
Writing Credits (in alphabetical order)
| Basil Mason | ... | (dialogue) |
| Basil Mason | ... | (screenplay) |
| Dorothy L. Sayers | ... | (original story) |
Cast (in credits order)
| John Loder | ... | John Ryder | |
| Peter Haddon | ... | Lord Peter Wimsey | |
| Austin Trevor | ... | Chief Inspector Parker | |
| Aubrey Mather | ... | Bunter | |
| Donald Wolfit | ... | Henry Camberley | |
| Leslie Perrins | ... | Maurice Windermere | |
| Ralph Truman | ... | Saunders | |
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Gordon McLeod | ... | Commissioner |
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George De Warfaz | ... | Chief of Foreign Police |
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Vincent Holman | ... | Works Manager |
| Lilian Oldland | ... | Mollie Ryder (as Mary Newland) | |
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Ann Codrington | ... | Desk Clerk |
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Dorice Fordred | ... | Camberley's Accomplice |
| Annie Esmond | ... | Old Lady Passenger | |
| Rest of cast listed alphabetically: | |||
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Frederick Burtwell | ... | Horace - Hotel Porter (uncredited) |
| Howard Douglas | ... | Ticket Inspector (uncredited) | |
| Charles Paton | ... | Man Holding Dogs (uncredited) | |
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Percy Rhodes | ... | (uncredited) |
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Robb Wilton | ... | Porter (uncredited) |
Produced by
| Hugh Perceval | ... | producer |
Cinematography by
| Jan Stallich | ... | (photography) |
Editing by
| Thorold Dickinson | ||
Art Direction by
| R. Holmes Paul | ... | (as R. Holmes-Paul) |
Second Unit Director or Assistant Director
| Vincent Permane | ... | assistant director |
Sound Department
| Stephen Dalby | ... | sound recordist |
| Eric Williams | ... | sound recordist |
| John W. Mitchell | ... | sound (uncredited) |
Music Department
| Percival Mackey | ... | musical director (uncredited) |
