Guest Stars Lucy Cohu as Madame Maigret Mark Heap as Dr. Moers Shaun Dingwall as Inspector Janvier Leo Staar as Inspector LaPointe Hugh Simon as Dr. Paul Colin Mace as Inspector Lognon Adrian Scarborough as Dr. Bloch Olivia Vinall as Arlette Adrian Rawlins as Oscar Bonvoisin Douglas Hodge as Fred Alfonsi Cassie Clare as Tania Lorraine Ashbourne as Rosa Alfonsi Nicola Sloane as The Countess Tilly Vosburgh as Nathalie Sebastian De Souza as Philippe Martinot Jane Wood as Mme. Aubin Sara Kestelman as Madame Dussardier Niké Kurta as Betty Gyula Mesterházy as Man at Pissoir Simon Gregor as Grasshopper Alexandra Bakonyi as Genvieve
