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
Producer
Original Music Composer
Director of Photography
Story
Screenplay
Screenplay
Production Design
Makeup Artist
Hairstylist
Production Manager
Director
