Two marine lieutenants battle a masked would-be world conqueror who uses electricity as a weapon.
Lee Powell
Lieutenant Tom Grayson
Bruce Bennett
Lieutenant Frank Corby
Eleanor Stewart
Janet Warfield
Montagu Love
General White
Hugh Sothern
Ben Warfield
Sam Flint
Colonel Grayson
Perry Ivins
Crenshaw
Forrest Taylor
Benson
John Picorri
Professor Gould
Carleton Young
Johnson, 'Aurora' Crewman
John Davidson
Lin Wing
Henry Otho
Sam Hedges, the Gardener
Reed Howes
Parker--Sub Crewman
Tom London
Henchman Wilson
