Boris Karloff
Baron Viktor von Frankenstein
Jana Lund
Carolyn Hayes
Don 'Red' Barry
Douglas Row
Charlotte Austin
Judy Stevens
Rudolph Anders
Wilhelm Gottfried
Tom Duggan
Mike Shaw
Irwin Berke
Inspector Raab
John Dennis
Morgan Haley
Norbert Schiller
Shuter
Mike Lane
Hans Himmler / The Monster
Franz Roehn
Cab Driver (uncredited)
Joe Ploski
Station Porter (uncredited)
Jack Kenney
Assistant Cameraman (uncredited)
Otto Reichow
Atomic Reactor Expert (uncredited)
