Jean Gabin

The banker René Duchêne, alias Georges Baudin known as “Monsieur”

Philippe Noiret

Edmond Bernadac, industrialist

Mireille Darc

Suzanne, former maid of "Monsieur"

Liselotte Pulver

Mrs. Elisabeth Bernadac

Gaby Morlay

Mrs. Bernadac, Edmond's mother

Gabrielle Dorziat

“Monsieur”’s mother-in-law

Henri Crémieux

“Monsieur”’s father-in-law

Andrex

Antoine, small-time crook

Jean-Pierre Darras

José, small-time crook

Jean Lefebvre

Private detective

Berthe Granval

Nathalie Bernadac, daughter of Edmond

Jean-Paul Moulinot

Maître Flamand, notary, friend of “Monsieur”