John Barrymore

as Professor Gibbs

as Georges Flammarion

as Windy Turlon

as King Louis XV

as Colonel Neilson

as Charles Jasper

as Col. J.A. Nielson

as Colonel Neilson

as Nicolai Nazaroff

as Mercutio

as Photograph of John Barrymore (uncredited)

as Oscar Jaffe

as George Simon

as Larry Renault

as Riviere

as Auguste A. Topaze

as Prince Paul Chegodieff

as Hilary Fairfield

as Baron Felix von Gaigern

as Duke of Charmerace

as Vladimar Ivan Tsarakov

as Svengali

as Ahab

as Marcus Paltran

as Sergeant Ivan Markov

as Chevalier Fabien des Grieux

as François Villon

as Don Jose de Marana / Don Juan de Marana

as Gordon Bryon 'Beau' Brummel

as Sherlock Holmes

as Dr. Henry Jekyll / Mr. Edward Hyde