Fu Manchu abducts a missionary doctor and forces him to surgically turn one of his hypnotized dacoits into a murderous doppelgänger of his arch-nemesis Inspector Nayland Smith of Scotland Yard as, part of a plan to become leader of the World's criminals
as Dr. Fu Manchu
as Nayland Smith
as Rudy / Ronald "Ronny" Moss
as Lin Tang
as Dr. Lieberson
as Ingrid Swenson
as Dr. Petrie
as Maria Lieberson
as Mark Weston
as Insp. Ramos
as Jasmin
as Kurt Heller
as Ship's Captain
