Merle Oberon as Kitty Langley

Laird Cregar as Mr. Slade

George Sanders as Inspector John Warwick

Cedric Hardwicke as Robert Bonting

Sara Allgood as Ellen Bonting

Aubrey Mather as Superintendent Sutherland

Queenie Leonard as Daisy the Maid

Doris Lloyd as Jennie

David Clyde as Det. Sgt. Bates

Helena Pickard as Annie Rowley

Ruth Clifford as Hairdresser (uncredited)

Thora Hird as First Murder Victim Katie (uncredited)

Anita Sharp-Bolster as Wiggy (uncredited)

C. Montague Shaw as Stage Manager (uncredited)

Skelton Knaggs as Man with Cart

Charlie Hall as Comedian

Bess Flowers as Woman in Audience

Olaf Hytten as Harris, the Haberdasher

Heather Wilde as

Fred Aldrich as

Harry Allen as

Jimmy Aubrey as

Wilson Benge as

Billy Bevan as

Ted Billings as

Edmund Breon as

Mae Bruce as

Colin Campbell as

Herbert Clifton as

Grace Davies as

Harold De Becker as

Cyril Delevanti as

Frank Elliott as

Herbert Evans as

Douglas Gerrard as

Gibson Gowland as

Kit Guard as

Frank Hagney as

Gerald Hamer as

Lumsden Hare as

Alec Harford as

Forrester Harvey as

Stuart Holmes as

Kenneth Hunter as

Boyd Irwin as

Edna Mae Jones as

Colin Kenny as

Crauford Kent as

Charles Knight as

Connie Leon as

George Magrill as

Kermit Maynard as

Mathew McCue as

Philo McCullough as

Clive Morgan as

Edmund Mortimer as

John Rice as

John Rogers as

Raymond Severn as

Yorke Sherwood as

Leslie Sketchley as

Will Stanton as

Jane Starr as

Robert R. Stephenson as

Donald Stuart as

Walter Tetley as

David Thursby as

Frederick Worlock as

Joan Bayley as Undetermined Secondary Role