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