Michel Simon as Commissioner Jules Maigret (segment "Le témoignage d'un enfant de choeur")

Raymond Rouleau as Inspector Wenceslas Vorobeïtchik, aka 'Wens' (segment "L'alibi de monsieur Wens")

John van Dreelen as G'man Lemmy Caution (segment "Je suis un tendre")

André Dalibert as Commissioner Malaise (segment "L'alibi de monsieur Wens")

René Génin as Concierge (segment "L'alibi de monsieur Wens")

Arlette Merry as Florence Garnier (segment "L'alibi de monsieur Wens")

Jacqueline Porel as Denise (segment "L'alibi de monsieur Wens")

Maurice Teynac as Heldinge (segment "L'alibi de monsieur Wens")

Reinhard Kolldehoff as Hartner (segment "Je suis un tendre")

Inge Langdut as Gisella Hauptmann (segment "Je suis un tendre")

Nathalie Nattier as Michèle Leroy (segment "Je suis un tendre")

Pierre Sergeol as Leblond (segment "Je suis un tendre")

Georges Tabet as Hubert (segment "Je suis un tendre")

Christian Fourcade as Justin (segment "Le témoignage d'un enfant de choeur")

Jérôme Goulven as Simon Lesueur, second-hand dealer (segment "Le témoignage d'un enfant de choeur")

Alexandre Rignault as Inspector Janvier (segment "Le témoignage d'un enfant de choeur")

Claire Olivier as Madame Maigret (segment "Le témoignage d'un enfant de choeur")

Marguerite Garcya as Justin's mother (segment "Le témoignage d'un enfant de choeur")

Jacques Morel as Commentary (voice)

Louis Blanche as Judge (segment "Le témoignage d'un enfant de choeur") (uncredited)

André Chanu as (uncredited)

Jo Dest as (uncredited)

Richard Flagey as (uncredited)

Arsenio Freignac as Lucas (uncredited)

Erich Frichs as (uncredited)

Gaston Garchery as (uncredited)

Pierre Goutas as (segment "Le témoignage d'un enfant de choeur") (uncredited)

Hennery as Director (uncredited)

André Kronefeld as (uncredited)

Yette Lucas as Second concierge (uncredited)

Robert Lussac as Police Director (uncredited)

Henri Marchand as Priest (segment "Le témoignage d'un enfant de choeur") (uncredited)

Raoul Marco as Doctor (uncredited)

Albert Michel as Brigadier (segment "Le témoignage d'un enfant de choeur") (uncredited)

Maryse Paillet as First concierge (uncredited)

Nicole Rimbaud as (uncredited)

Marcel Rouzé as (segment "Le témoignage d'un enfant de choeur") (uncredited)

Michel Vadet as (uncredited)