as Dr. Fleurot
as Rinaldi aka 'The Great Rinaldi'
as Mario Du Billar
as Wheeler
as Jean, Duke d'Alencon, cousin of Charles
as Clyde Gorman
as Paul Gerente
as Sir Percival Glyde
as Cody Clark
as Dr. Farno
as Tony Abbott
as Premier Gilchi Tanaka
as Tomasso
as Dr. Karl Eckstrom
as Clayton Evans
as George Harrington
as Chicago Hagen
as Governor Elden
as Dr. Hubbell Eliot
as Jean Cornudet
as Vincent
as Paul Donaldson
as Georges Peydal
as Capt. Deichgraber
as Captain Von Hagen
as Dr. Edward R. Winter
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
