John McLaren
Katy Dandridge
Mary McLaren
Professor Herbert Weisse
Peter Leduq
Randowsky
Sergei Boetnikov
General van Dorff (uncredited)
Dennis McLaren (uncredited)
Lab Assistant (uncredited)
Stuart (uncredited)
Landowsky (uncredited)
Director
Director of Photography
Original Music Composer
Producer
Screenplay
Makeup Artist
Screenplay
Production Manager
Story
Hairstylist
Production Design
Director
