André Turpin Director, Screenwriter Sophie Nélisse Simone at 13 Actor Mylène Mackay Simone at 25 Actor Lise Roy Simone at 60 Actor Guy Thauvette Monsieur Porter Actor Monia Chokri Mère de Simone Actor Stéphane Crête Père de Simone Actor Anne-Marie Cadieux Hypnothérapeute Actor Théodore Pellerin Grégoire Actor Francis Ducharme Comédien Actor Fanny Migneault-Lecavalier Voisine Actor Valérie Beaugrand-Champagne Screenwriter Robert Morin Screenwriter Luc Déry Producer Kim McCraw Producer Josée Deshaies Cinematographer Sophie Leblond Film Editing François Lafontaine Original Music Emmanuel Frechette Production Design Jean-Charles Claveau Set Decoration Valérie Bélègou Costume Design Lucie Robitaille Casting