Characters played by Boris Karloff
Gen. Nikolas Pherides
Characters played by Ellen Drew
Thea
Characters played by Marc Cramer
Oliver Davis
Characters played by Katherine Emery
Mrs. Mary St. Aubyn
Characters played by Helene Thimig
Madame Kyra
Characters played by Alan Napier
St. Aubyn
Characters played by Jason Robards Sr.
Albrecht
Characters played by Ernst Deutsch
Dr. Drossos
Characters played by Sherry Hall
Col. Kobestes
Characters played by Erick Hanson
Officer
Characters played by Rose Hobart
Mrs. Mary St. Aubyn (in long shot)
Characters played by Skelton Knaggs
Andrew Robbins