Cast
Richard Greene
Sir Ronald Burton / 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
Tudor Owen
Romley
Henry Corden
Fender
Otto Waldis
Innkeeper Krantz
Roy Engel
Burgher
Leslie Denison
Sir David Layton (uncredited)
Bernard Szold
Koppich (uncredited)
Jack Perrin
Hunter (uncredited)
Forrest Burns
Guard (uncredited)
Chuck Hamilton
Guard (uncredited)
John Roy
Guard (uncredited)
Victor Romito
Guard (uncredited)
Crew
Art
Bernard Herzbrun
Art Direction
Russell A. Gausman
Set Decoration
Oliver Emert
Set Decoration
Alfred Sweeney
Art Direction
Editing
Russell F. Schoengarth
Editor
Production
William Alland
Producer
Sound
Paul Dessau
Music
Leslie I. Carey
Sound
Hans J. Salter
Music
Paul Sawtell
Music
Joseph Gershenson
Music Director
Joe Lapis
Sound
Frank Skinner
Music
Charles Previn
Music
Milton Rosen
Music
William Lava
Music
Visual Effects
David S. Horsley
Visual Effects