Patrick Barr
Det. Insp. Alan Wembury
Cast (13)
Alexander Knox
Dr Anthony Lomond
Wilfrid Lawson
Maurice Meister
Sonnie Hale
Samuel Cuthbert 'Sam' Hackett
Louise Henry
Cora Ann Milton
John Longden
Inspector Bliss
Patricia Roc
Mary Lenley
Peter Croft
John Lenley
Arthur Hambling
Det. Sgt. Richards
George Merritt
Police Station Sergeant
John Turnbull
Prison Governor
Charles Eaton
Col. Walford
Cameron Hall
Drunken Scotsman (uncredited)
Crew (6)
Walter Forde
Director
Ronald Neame
Cinematography
Ernest Irving
Original Music Composer
Edgar Wallace
Novel
Charles Saunders
Editor
Sidney Gilliat
Screenplay