Casts
Richard Greene
as Sir Ronald Burton / Richard Beckett
Boris Karloff
as Dr. Meissen
Stephen McNally
as Count Karl von Bruno
Rita Corday
as Countess Elga von Bruno
Lon Chaney Jr.
as Gargon
John Hoyt
as Count Steiken
Michael Pate
as Count Ernst von Melcher
Nancy Valentine
as Therese von Wilk
Tudor Owen
as Romley
Henry Corden
as Fender
