Characters played by Robert Lamoureux
Arsène Lupin
Le lieutenant André Laroche
Characters played by Alida Valli
Aurélia Valéano
Characters played by Jacques Dufilho
Albert
le valet de chambre
Characters played by Jean Bellanger
L'employé des wagons-lits
Characters played by Liliane Chenevière
[no data]
Characters played by Robert Dalban
L'inspecteur Béchoux
de la Police Judiciaire
Characters played by Michel Etcheverry
Van Nelden
le collectionneur
Characters played by Jean Galland
Le général
Characters played by Gisèle Grandpré
Madame du Bois-Lambert
Characters played by Harold Kay
Henri
Characters played by Hubert de Lapparent
Le consul de France à Florence
Characters played by Paul Muller
L'attaché du consulat de France à Florence
Characters played by Ginette Pigeon
Agnès - l'infirmière
Characters played by Anne Valon
[no data]
Characters played by Michel Vocoret
(as Michel Vaucoret)
Characters played by Roger Dumas
Isidore Bautrelet dit Véritaz
Characters played by Yves Robert
La Ballu
Characters played by Gérard Darrieu
Un acolyte
Characters played by Pierre Duncan
(uncredited)
Characters played by Gabriel Gobin
L'employé de la SNCF
Characters played by René Hell
Un gardien de prison
Characters played by René Lefevre-Bel
(uncredited)
Characters played by Judith Magre
(uncredited)
Characters played by Claude Mercutio
(uncredited)
Characters played by Paul Préboist
L'ivrogne d'Enghien
Characters played by Robert Rollis
Un voyageur dans le train
Characters played by Paul Villé
Le secrétaire des archives