Jean Gabin as Commissioner Jules Maigret

Michel Auclair as Maurice de Saint-Fiacre

Valentine Tessier as Countess de Saint-Fiacre

Jacques Morel as Attorney-at-law Mauléon

Michel Vitold as Father Jodet

Paul Frankeur as Doctor Bouchardon

Robert Hirsch as Lucien Sabatier

Gabrielle Fontan as Marie Tatin

Jean-Pierre Granval as The Journalist

Camille Guérini as Gautier

Jacques Hilling as Waiter

Micheline Luccioni as Arlette

Jacques Marin as Albert

Armande Navarre as Myriam

Marcel Pérès as Sacristan

Serge Rousseau as Émile Gautier

Hélène Tossy as Adèle Gautier

Bruno Balp as Paperboy (uncredited)

Robert Balpo as Bank Manager (uncredited)

Marcel Bernier as Police Inspector (uncredited)

Charles Bouillaud as

Christian Brocard as A Journalist (uncredited)

Henri Coutet as Grocery Store Customer (uncredited)

René Hell as Typographer (uncredited)

Guy Henry as Police Inspector (uncredited)

Evelyne Istria as Château Handmaid (uncredited)

Laure Paillette as Father Jodet's Handmaid (uncredited)

Georgette Peyron as Wardrobe Manager (uncredited)

Christian Rauth as Ernest Bouffard (uncredited)

Yvon Sarray as Man at the Wake (uncredited)

Andrée Tainsy as Club Hula-Hoop Manager (uncredited)