A mad scientist attempts to rule the world by creating various elaborate inventions.
Bela Lugosi
Dr. Alex Zorka / Dr. Zane
Robert Kent
Capt. Bob West
Dorothy Arnold
Jean Drew
Edwin Stanley
Dr. Fred Mallory
Regis Toomey
Lt. Jim Daly
Jack C. Smith
Monk
Edward Van Sloan
Jarvis
Dora Clement
Ann Zorka
Anthony Averill
Rankin
Hugh Huntley
Perkins
