Man investigates the disappearance of two of his friends who were the guests of a sinister Austrian count. |
Richard Greene | - | Sir Ronald Burton, alias Richard Beckett |
Boris Karloff | - | Dr. Meissen |
Stephen McNally | - | Count Karl von Bruno |
Rita Corday | - | Countess Elga von Bruno |
Lon Chaney Jr. | - | Gargon |
John Hoyt | - | Count Steiken |
Michael Pate | - | Count Ernst von Melcher |
Nancy Valentine | - | Therese Von Wilk |