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Austin Trevor as Hercule Poirot |
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Jane Carr as Lady Edgware / Carlotta Adams |
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Richard Cooper as Captain Hastings |
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John Turnbull as Inspector Japp |
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Michael Shepley as Captain Ronald Marsh |
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Leslie Perrins as Bryan Martin |
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C. V. France as Lord Edgware |
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Sophie Stewart as Geraldine Marsh |
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Brenda Harvey as Miss Carroll |
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S. Victor Stanley as Jobson |
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Phyllis Morris as Ellis |
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Hargrave Pawson as Donald Ross |
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Conway Dixon as Sir Montague Corner |
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Stanley Vine as Lord Edgware's Butler |
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Quinton McPherson as Moxon |
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Kynaston Reeves as Duke of Merton |
| Costume & Make-Up | Louis Brooks | Costume Design |
| Writing | Agatha Christie | Novel |
| Directing | Henry Edwards | Director |
| Camera | Sydney Blythe | Director of Photography |
| Writing | H. Fowler Mear | Screenplay |
| Art | James A. Carter | Art Direction |
| Production | Julius Hagen | Producer |
| Sound | Baynham Honri | Sound Recordist |
| Directing | Arthur Barnes | Assistant Director |
| Editing | Michael C. Chorlton | Editor |
| Costume & Make-Up | Charles | Hairstylist |
| Sound | W.L. Trytel | Original Music Composer |
