Alice White
Anny Ondra
Mrs. White
Sara Allgood
Boy (uncredited)
Johnny Ashby
Alice White (voice) (uncredited)
Joan Barry
Sergeant (uncredited)
Johnny Butt
Gossiping Neighbour (uncredited)
Phyllis Konstam
The Chief Inspector (silent version) (uncredited)
Sam Livesey
Gossip Woman (uncredited)
Phyllis Monkman
Crook (uncredited)
Percy Parsons
Mr. White
Charles Paton
Detective Frank Webber
John Longden
Tracy
Donald Calthrop
The Artist
Cyril Ritchard
The Landlady
Hannah Jones
The Chief Inspector
Harvey Braban
The Detective Sergeant
Ex-Det. Sergt. Bishop
Man on Subway (uncredited)
Alfred Hitchcock
Assistant Camera
Michael Powell
Writer
Ronald Neame
Theatre Play
Charles Bennett
Screenplay
Director
Editor
Emile de Ruelle
Art Direction
C. Wilfred Arnold
Director of Photography
Jack E. Cox
Original Music Composer
Hubert Bath
Norman G. Arnold
Sound Editor
Harry Miller
Producer
John Maxwell
Sound Recordist
Dallas Bower
Derick Williams
Sound
Harold V. King
Assistant Director
Frank Mills
Reginald Connelly
Conductor
John Reynders
Music Arranger
Harry Stafford
Jimmy Campbell
Dialogue
Benn W. Levy