Philippe NoiretCount Hector de Clérambard Dany Carrel'La Langouste' Claude PiépluMaître Galuchon Lise DelamareMadame de Lere Juliette BracMrs. Calluchon Lyne ChardonnetBrigitte Galuchon André GilleDoctor Mindeure Françoise ArnaudEtiennette Galuchon Josiane LévêqueEvelyne Galuchon Jacques RamadeDragoon who annoys 'La Langouste' Roland NeunreutherDragoon Jean PieuchotNotary (uncredited) Yves RobertDragoon who enters La Langouste's (uncredited) / Director / Escritor Eric VasbergDragoon (uncredited) Yves RobertDragoon who enters La Langouste's (uncredited) / Director / Escritor Jean-Loup DabadieEscritor Vladimir CosmaCompositor de música original 
