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")