Robert Lamoureux as Arsène Lupin

Robert Dalban as l'inspecteur Béchoux

Alida Valli as Aurélia Valéano

Jacques Dufilho as Albert, le valet de chambre

Yves Robert as La Ballue

Roger Dumas as Isidore

Hubert de Lapparent as Le consul

Jean Bellanger as L-employe des wagons-lits

Liliane Chenevière as

Michel Etcheverry as Van Nelden, le collectionneur

Jean Galland as Le general

Gisèle Grandpré as Madame du Bois-Lambert

Harold Kay as Henri

Paul Müller as L'attache du consulat de France a Florence

Ginette Pigeon as Agnes - l'infirmiere

Anne Valon as

Michel Vocoret as

Roger Dumas as Isidore Baurelet dit Veritaz

Gérard Darrieu as Un acolyte

Pierre Duncan as

Gabriel Gobin as

René Hell as

René Lefèvre-Bel as

Judith Magre as

Claude Mercutio as

Paul Préboist as

Robert Rollis as

Paul Villé as