On screen
Cast
10 credited performers
Nigel Stock
Charles Dennistoun
Roland Curram
Ronnie Cash
Caroline Blakiston
Dr. Odile Keppler
Betty Cooper
Betty Dennistoun
John Horsley
Tom Dennistoun
Artwork unavailable
Sibylla Kay
Maid
Artwork unavailable
Geraldine Newman
Joan Dennistoun
Robin Phillips
Dr. Willi Herstein
Donald Pickering
Kenneth Dennistoun
Artwork unavailable
Hugo Schuster
Dr. Gerhardt Keppler