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