cast
- Barry Fitzgerald
- Judge Quincannon
- Walter Huston
- Dr. Armstrong
- Louis Hayward
- Phillip Lombard
- Roland Young
- Detective Blore
- June Duprez
- Vera Claythorne
- C. Aubrey Smith
- Gen. Sir John Mandrake
- Judith Anderson
- Emily Brent
- Mischa Auer
- Prince Nikki Starloff
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- Richard Haydn
- Rogers, the butler
- Queenie Leonard
- Mrs. Rogers
- Harry Thurston
- Fisherman
crew
- René Clair
- Director, Producer, Screenwriter
- Harry M. Popkin
- Producer
- Agatha Christie
- Play Author
- Dudley Nichols
- Screenwriter
- Lucien Andriot
- Cinematographer
- Mario Castelnuovo-Tedesco
- Composer (Music Score)
- Harvey Manger
- Editor
- Ernst Fegte
- Art Director
- Rene Hubert
- Costume Designer
