character - Hippolyte Vabre, the father, owner of the building

character - Grigou

character - Officer

character - Lacour

character - Le père d'Amélie

character - President

character - Friedrich, le chef de la police

character - The Grand Duke

character - Willy Ferrière

character - Superintendent

character - Stanton Muir

character - Le directeur de l'hôtel

character - Saint-Palmier

character - Mirgaudon

character - Stephany, le financier

character - Graf Hoyos

character - J.B. Albey

character - Monsieur Bourcart

character - Le Duc

character - Prinz Diebenstein

character - Professor Nebenkrug

character - Baron von Mallock

character - Baron Harvey

character - Baron de Neuve

character - Basil Lescoe

character - Buguelle

character - Sir William Dewitt

character - Gabriel Lestrange

character - Larsac

character - Jean-Elie

character - Lucien Vigneret

character - Corvel

character - l'inspecteur David

character - De Winter