Cast & Crew
- Tyrone PowerLeonard Stephen Vole
- Marlene DietrichChristine Helm Vole
- Charles LaughtonSir Wilfrid Robarts
- Elsa LanchesterMiss Plimsoll
- John WilliamsMr. Brogan-Moore
- Henry DaniellMr. Mayhew
- Ian WolfeMr. Carter
- Una O'ConnorJanet McKenzie
- Torin ThatcherMr. Myers
- Francis ComptonJudge
- Norma VardenEmily French
- Philip TongeInspector Hearne
- Ruta LeeDiana
- Ottola NesmithMiss Johnson (uncredited)
- Marjorie EatonMiss O'Brien (uncredited)
- J. Pat O'MalleyShorts salesman (uncredited)
- Billy WilderDirector
- Edward SmallProducer
- Arthur Hornblow Jr.Producer
- Agatha ChristieWriter
- Lawrence B. MarcusWriter
- Billy WilderWriter
- Harry KurnitzWriter