Guillaume Gallienne Guillaume , Maman Director, Actor, Screenwriter, Producer André Marcon Le père Actor Françoise Fabian Babou Actor Nanou Garcia Paqui Actor Diane Kruger Ingeborg Actor Reda Kateb Karim Actor Götz Otto Raymund Actor Brigitte Catillon La tante d'Amérique Actor Carole Brenner Une tante polyglotte Actor Charlie Anson Jérémy Actor Yvon Back Le professeur d'équitation Actor Renaud Cestre Le frère aux cheveux bouclés Actor Oscar Copp Nicolas Actor Pierre Derenne Le frère aux cheveux raides Actor Claude Mathieu Screenwriter Nicolas Vassiliev Screenwriter Edouard Weil Producer Cyril Colbeau-Justin Producer Jean-Baptiste Dupont Producer Alice Girard Producer Nathalie Cheron Casting Glynn Speeckaert Cinematographer Marc-Antoine Beldent Sound Engineer Sylvie Olivé Production Design Olivier Bériot Costume Design Bérengère Saint-Bézar Script Supervisor Valérie Deseine Film Editing Loïc Prian Sound Editor Marie-Jeanne Serero Original Music Olivier Dô Hùu Sound Mixer