Alfred Hitchcock Director Leslie Banks Bob Lawrence Actor Peter Lorre Abbott Actor Edna Best Jill Lawrence Actor Frank Vosper Ramon Actor Hugh Wakefield Clive Actor Nova Pilbeam Betty Lawrence Actor Pierre Fresnay Louis Bernard Actor Cicely Oates Nurse Agnes Actor D.A. Clarke-Smith Police Inspector Binstead Actor George Curzon Gibson Actor Henry Oscar George Barber Actor Michael Balcon Producer Curt Courant Cinematographer Hugh Stewart Film Editing Alfred Junge Art Director Arthur Benjamin Original Music