Anny Ondra as Alice White

Sara Allgood as Mrs. White

Charles Paton as Mr. White

John Longden as Detective Frank Webber

Donald Calthrop as Tracy

Cyril Ritchard as The Artist

Hannah Jones as The Landlady

Harvey Braban as The Chief Inspector

Ex-Det. Sergt. Bishop as The Detective Sergeant

Alfred Hitchcock as Man on Subway (uncredited)

Johnny Ashby as Boy (uncredited)

Joan Barry as Alice White (voice) (uncredited)

Johnny Butt as Sergeant (uncredited)

Phyllis Konstam as Gossiping Neighbour (uncredited)

Sam Livesey as The Chief Inspector (silent version) (uncredited)

Phyllis Monkman as Gossip Woman (uncredited)

Percy Parsons as Crook (uncredited)