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

Fred Aldrich

Harry Allen

Jimmy Aubrey

Wilson Benge

Billy Bevan

Ted Billings

Edmund Breon

Mae Bruce

Colin Campbell

Herbert Clifton

Grace Davies

Harold De Becker

Cyril Delevanti

Frank Elliott

Herbert Evans

Douglas Gerrard

Gibson Gowland

Kit Guard

Frank Hagney

Gerald Hamer

Lumsden Hare

Alec Harford

Forrester Harvey

Stuart Holmes

Kenneth Hunter

Boyd Irwin

Edna Mae Jones

Colin Kenny

Crauford Kent

Charles Knight

Connie Leon

George Magrill

Kermit Maynard

Mathew McCue

Philo McCullough

Clive Morgan

Edmund Mortimer

John Rice

John Rogers

Raymond Severn

Yorke Sherwood

Leslie Sketchley

Will Stanton

Jane Starr

Robert R. Stephenson

Donald Stuart

Walter Tetley

David Thursby

Frederick Worlock

Joan Bayley

as Undetermined Secondary Role