Michael Denison
Robert Blair
Dulcie Gray
Marion Sharpe
Anthony Nicholls
Kevin McDermott
Marjorie Fielding
Mrs. Sharpe
Athene Seyler
Aunt Lin
John Bailey
Detective Inspector Grant
Ann Stephens
Betty Kane
Hy Hazell
Mrs. Chadwick
Kenneth More
Stanley Peters
Avice Landone
Mrs. Wynn
Maureen Glynne
Rose Glynn
Peter Jones
Bernard Chadwick
Moultrie Kelsall
Judge
Martin Boddey
Inspector Hallam
Patrick Troughton
Bill Brough
Hugh Moxey
Counsel for Prosecution
John Warwick
Carley
Ernest Jay
Ramsden
Everley Gregg
Mrs. Jarrett
Ambrosine Phillpotts
Miss Spence
Harold Lang
Bus Inspector
John Forrest
Leslie Wynn
Jean Anderson
Miss Tuff
Lawrence Ray
Waiter
Victor Maddern
Mechanic
Doris Yorke
Christina
Will Ambro
Heseltine
Jack McNaughton
Jury Foreman (Uncredited)
Richard Neller
Police Sergeant (Uncredited)
John Warren
Charlie (Uncredited)
Charles Saynor
Police Officer in Courtroom (Uncredited)
John Wilder
Police Officer in Courtroom (Uncredited)
Lawrence Huntington
Director
Robert Hall
Writer
Lawrence Huntington
Writer
Josephine Tey
Novel
Robert Hall
Producer
Clifford Boote
Editor
Günther Krampf
Director of Photography
Philip Green
Original Music Composer
Wilfred Eades
Production Design
Terence Verity
Art Direction
John O'Gorman
Makeup Artist
Polly Richards
Hairstylist
Gordon Scott
Assistant Director
Bill Beavis
Scenic Artist
Harold V. King
Recording Supervision
F. McNally
Sound Recordist
Arthur Graham
Camera Operator
Louis Levy
Music Director
June Faithfull
Continuity