Trude von Molo

as Mathilde

Willi Forst

as Vincenzo Peruggia

Gustaf Gründgens

as Unbekannter

Fritz Odemar

as Direktor des Louvre

Max Gülstorff

as Oberaufseher

Paul Kemp

as Polizeileutnant

Hubert von Meyerinck

as Museumsführer

Alexander Roda-Roda

Anton Pointner

as Reisender

Alexander Granach

as Redner

Fritz Grünbaum

as Angeblicher Bilderdieb

Fritz Alberti

Fritz Greiner

Paul Vincenti

Paul Wagner

Ernst Reicher

Hugo Döblin

Angelo Ferrari

as Italienischer Polizeikommissar

Bruno Ziener

Teddy Bill

Elfriede Jera

Alexandra Molino von Kluck

Lilian Ellis

Hermine Sterler

Ferdinand von Alten

Gerti Klemm

as Sängerin

Max Linder

as (archive footage)

Rosa Valetti