Cast
Robert Lamoureux
Arsène Lupin / Lieutenant André Laroche
Robert Dalban
Inspector Béchoux of the Judicial Police
Alida Valli
Aurélia Valéano
Jacques Dufilho
Albert, manservant
Yves Robert
La Ballu
Roger Dumas
Isidore Bautrelet aka 'Véritaz'
Hubert de Lapparent
French Consul in Florence
Jean Bellanger
Sleeping car employee
LC
Liliane Chenevière
Michel Etcheverry
Van Nelden, collector
Jean Galland
General
Gisèle Grandpré
Madame du Bois-Lambert
HK
Harold Kay
Henri
Paul Müller
Attaché of the French consulate in Florence
Ginette Pigeon
Agnès, nurse
AV
Anne Valon
Michel Vocoret
Gérard Darrieu
Sidekick
PD
Pierre Duncan
(uncredited)
Gabriel Gobin
SNCF employee (uncredited)
René Hell
Prison guard (uncredited)
René Lefèvre-Bel
(uncredited)
Judith Magre
(uncredited)
CM
Claude Mercutio
(uncredited)
Paul Préboist
Drunkard of Enghien (uncredited)
Robert Rollis
Traveler on the train (uncredited)
Paul Villé
Secretary of the archives (uncredited)
Crew
Yves Robert
Directing
MG
Mario Gabrielli
Production
HM
Hubert Mérial
Production
JLD
Jean Le Duc
Production
Georges Van Parys
Sound
GF
Georgette Fillon
Costume & Make-Up
Alain Poiré
Production
GN
Gilbert Natot
Editing
MD
Michel Deruelle
Costume & Make-Up
JB
Jules Borkon
Production
FC
François Chavane
Production
ME
Moris Ergas
Production
RC
Robert Clavel
Art
SK
Simone Knapp
Costume & Make-Up
MG
Mary Greco
Directing
Georges Casati
Directing
JM
Jean-Marie Maillols
Camera
CM
Charles-Henri Montel
Camera
JM
Jean Magis
Camera
RC
Renato Cadueri
Sound
RS
Robert Sussfeld
Production
RB
Robert Biart
Sound
RP
Roland Paillas
Camera
JB
Jacques Besnard
Directing
MB
Maurice Barry
Camera
Georges Van Parys
Sound
