Charles Denner

as Henri Landru

Michèle Morgan

as Mme Buisson

Danielle Darrieux

as Mme Héon

Hildegard Knef

as German Widow

Juliette Mayniel

as Mme Collomb

Stéphane Audran

as Fernande Segret

Catherine Rouvel

as Mlle Babeley

Françoise Lugagne

as Catherine Landru

Mary Marquet

as Old Lady

Denise Provence

as Mme Lacoste

Serge Bento

as Maurice Landru

Claude Mansard

as Landru's Attorney

Robert Burnier

as Court President

Mario David

as Advocate General

Jean-Louis Maury

as Commissaire Belin

Diane Lepvrier

as Suzanne Landru

Gisèle Sandré

as Mireille

Sacha Briquet

as Prosecutor

Raymond Queneau

as Georges Clemenceau

Jean-Pierre Melville

as Clemenceau's Aide

Pierre Vernier

René Pannetrat

Jacques Munier

Louis Lyonnet

Pierre Lafont

Huguette Forge

Joseph Hindley

André Dino

André Fouché

Bernard Papineau

Eric Muller

Robert Barre

Philippe Castelli

Jean-Marie Arnoux

Jacques Robiolles

Alain Quercy

Henri Attal

Dominique Zardi