"A mad scientist attempts to rule the world by creating various elaborate inventions."
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
Hugh Huntley
as Perkins
Monte Vandergrift
as Al
Frank Mayo
as Train Engineer
Jim Farley
as Skipper
Eddie Acuff
as Mac
Reed Howes
as Signalman
Ed Wolff
as The Robot
Hooper Atchley
as Experimental Lab Tech
Roy Barcroft
as AMI Agent Parker
Robert Blair
as Smith
Al Bridge
as White Rose Sailor
Don Brodie
as Thug
Lane Chandler
as Henchman with Rankin
Edmund Cobb
as Army Sergeant
Lee J. Cobb
as Road Crew Foreman (archive footage)
Eddie Dunn
as Policeman
Jerry Frank
Karl Hackett
as Brown
Charles King
as Cop
George Magrill
as Thug-Pilot / Schooner Crewman
Monte Montague
as Airplane Mechanic
Pat O'Malley
as AMI Chief
David Sharpe
as Schooner Sailor
Tom Steele
as Train Conductor / Radio Truck Driver
Forrest Taylor
as Black
Harry Wilson
as Schooner Crewman
Ford Beebe
Director
Wyllis Cooper
Story
George H. Plympton
Screenplay
Basil Dickey
Saul A. Goodkind
Mildred Barish
