as Arsène Lupin
as l'inspecteur Béchoux
as Aurélia Valéano
as Albert, le valet de chambre
as La Ballue
as Isidore
as Le consul
as L-employe des wagons-lits
as Van Nelden, le collectionneur
as Le general
as Madame du Bois-Lambert
as Henri
as L'attache du consulat de France a Florence
as Agnes - l'infirmiere
as Isidore Baurelet dit Veritaz
as Un acolyte