Doctors perform brain surgery to reform a hardened criminal
Donald Gray
James Martin
Ann Wemyss
Joan Bauer
Mary Newcomb
Helen Rollins
Ronald Ward
Michael Waring
Henri De Vries
Professor Bauer
Alastair Sim
'Pop' Lawler
James Carew
Dr. Rollins
Henry Caine
Sergeant Cox
Eric Hales
Carter
Joana Pereira
Miss Bauer
Arnold Bell
Leech
Lillian Talbot
Mrs. Barker
Albert Parker
Director
Hubert Osborne
Screenplay
Peter Tanner
Editor
Colin Wark
Music Director
Ronald Neame
Cinematography
W.J. Hemsley
Art Direction
