Margaret Lockwood
Helene Ardouin
Acting
Hugh Sinclair
Inspector Calas
Acting
James Mason
Andre Laurent
Acting
Raymond Lovell
Prof. Winkler
Acting
Rodney Ackland
Winker's Assistant
Writing
Enid Stamp-Taylor
Dany
Acting
Hartley Power
Gordon
Acting
Jane Carr
Delia
Acting
Edana Romney
Winkler's Assistant
Acting