Joan Crawford
Dr. Brockton
Acting
Michael Gough
Sam Murdock
Acting
Bernard Kay
Inspector Greenham
Acting
Kim Braden
Anne Brockton
Acting
David Griffin
Malcolm Travers
Acting
John Hamill
Cliff
Acting
Thorley Walters
Magistrate
Acting
Jack May
Dr. Selbourne
Acting
Geoffrey Case
Bill
Visual Effects
Robert Hutton
Dr. Richard Warren
Acting
Simon Lack
Colonel Vickers
Acting
David Warbeck
Alan Davis
Acting
Chloe Franks
Little Girl
Acting
Maurice Good
Reporter
Acting
Joe Cornelius
Trog
Acting
John Baker
Anaesthetist
Acting
Jack Carter
Police Officer (uncredited)
Acting
Roy Beck
Reporter (uncredited)
Acting