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Gino Cervi
as Maigret
Andreina Pagnani
as La signora Maigret
Mario Maranzana
as Lucas
Manlio Busoni
as Torrence
Daniele Tedeschi
as Janvier
Gianni Musy
as Lapointe
Franco Volpi
as Il giudice Comeliau
Oreste Lionello
as Moers
Giuseppe Scarcella
as Un agente
Franco Scandurra
as Andrè Monfils
Romildo Craveri
Writer
Amleto Micozzi
Umberto Ciappetti
Diego Fabbri
Georges Simenon
Novel
Mario Landi
Director