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