Alfred Hitchcock Director Isabel Jeans Larita Filton Actor Robin Irvine John Whittaker Actor Franklin Dyall Aubrey Filton Actor Enid Stamp-Taylor Sarah Actor Violet Farebrother Mrs. Whittaker Actor Frank Elliott Colonel Whittaker Actor Dacia Deane John's elder sister Actor Dorothy Boyd Hilda Whittaker Actor Ian Hunter The Plantiff's Counsel Actor Eric Bransby Williams Claude Robson Actor Benita Hume Telephone receptionist (uncredited) Actor Noël Coward Writer Eliot Stannard Writer Michael Balcon Producer Claude L. McDonnell Cinematographer Ivor Montagu Film Editing