James Huth Director, Writer Jean Dujardin Brice Agostini Actor, Writer Clovis Cornillac Marius Lacaille Actor Élodie Bouchez Jeanne Actor Bruno Salomone Igor d'Hossegor Actor Alexandra Lamy Chantal la Sirène, Alice de Nice Actor François Chattot Monsieur Actor Mathias Mlekuz Eudes Actor Antoine Duléry Micky Actor Patrick Ligardes Jean-Marie Guitera Actor Isabelle Caubère Josie Actor Delphine Chaneac Marjorie Actor Éric Altmayer Producer Nicolas Altmayer Producer Karine Angeli Writer