All Cast
Austin Trevor
Hercule Poirot
Franklin Dyall
Sir Roger Ackroyd
Elizabeth Allan
Ursula Browne
J.H. Roberts
Dr. Sheppard
John Deverell
Lord Halliford
Ronald Ward
Ralph Ackroyd
Mary Jerrold
Mrs. Ackroyd
Mercia Swinburne
Caryll Sheppard
Harvey Braban
Insp. Davis
Clare Greet
(uncredited)
Diana Beaumont
(uncredited)