Guest Stars Pierre Cévaër as Bournazel - Assistant Bertillon 1 Benoît Tachoires as Chandrot - Inspecteur Thibaud Gitton as Berthier - Inspecteur William Rageau as Assistant Bertillon Gaëtan Peau as Guichard - Inspecteur des Moeurs Aymé Medeville as Julien Fiersi David Lelièvre as Assistant Bertillon 3 Régis Royer as L'Abbé Gardey Grégoire Monsaingeon as Commissaire principal Fondari Mathilde Mery as Cécile Jouin Bastien Ughetto as Norbert Dubreuil Salomé Lavenir as Soeur Justine Johann Cuny as Félicien - l'Inconnu du Bois de Boulogne Catherine Artigala as Concierge de Rosalie Nathan Betoux as Paul - Mort Bois de Boulogne Guillaume Sentou as Dentiste Meg Arnaud Simon as Agent 3 - Brigade des Moeurs Marouan Iddoub as Agent 2 - Brigade des Moeurs Justin Blanckaert as Agent 1 - Brigade des Moeurs Maud Imbert as Bourgeoise magasin de chapeaux Frédéric Kneip as Wencesclas Portalis Manu Reymond as Agent Moeurs Bureau