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Austin Trevor as Hercule Poirot |
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Franklin Dyall as Sir Roger Ackroyd |
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Elizabeth Allan as Ursula Browne |
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J.H. Roberts as Dr. Sheppard |
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John Deverell as Lord Halliford |
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Ronald Ward as Ralph Ackroyd |
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Mary Jerrold as Mrs. Ackroyd |
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Mercia Swinburne as Caryll Sheppard |
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Harvey Braban as Insp. Davis |
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Clare Greet as (uncredited) |
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Diana Beaumont as (uncredited) |
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Earl Grey as (uncredited) |
| Writing | Michael Morton | Screenplay |
| Writing | H. Fowler Mear | Screenplay |
| Camera | Sydney Blythe | Director of Photography |
| Production | Julius Hagen | Producer |
| Writing | Agatha Christie | Novel |
| Directing | Leslie S. Hiscott | Director |
| Camera | Cyril Stanborough | Still Photographer |
| Sound | John Greenwood | Original Music Composer |
