Cast
- Aladin Reibel as Professor Rosenberg
- François Berléand as Alexander, Constance's father
- Stéphane Pezerat as Speech therapist
- Dany Boon as Valentin Duquesne, aka Valentin D.
- Judi Beecher as Kate Fischer
- Pierre Richard as Joseph Duquesne, Valentine's father
- Guy Lecluyse as Gustave, Valentin's brother
- Valérie Bonneton as Louloute, Valentin's ex-fiancée
- Laurence Arné as Constance Brandt, wife of Valentin
- Ludovic Pinette as Alexander's lawyer
- Line Renaud as Suzanne Duquesne, Valentin's mother
- Juliane Lepoureau as Britney
- Thomas VDB as Paparazzi
- Dan Cohen as Fernando Alvarez
- Antonia de Rendinger as Madame de Cléry