as Jean, Duke d'Alencon, cousin of Charles
as Dr. Fleurot
as Dr. Karl Eckstrom
as Wheeler
as Premier Gilchi Tanaka
as Mario Du Billar
as Tony Abbott
as Paul Gerente
as Cody Clark
as Vincent
as Dr. Edward R. Winter
as Clayton Evans
as Sir Percival Glyde
as Tomasso
as Jean Cornudet
as Dr. Hubbell Eliot
as Clyde Gorman
as Rinaldi aka 'The Great Rinaldi'
as Paul Donaldson
as George Harrington
as Dr. Farno
as Capt. Deichgraber
as Governor Elden
as Georges Peydal
as Captain Von Hagen
as Chicago Hagen
as Larry Blake
as John Newberry
as Professor
as The Pawnbroker
as Abel Dennis
as Harold
as Mr. Stewart (uncredited)
as Kerwin Drake
as Lawrence Price
