Adrien, 40 years old and totally immature, is dumped by Maude, 35 years old, eager to finally found a family. In an attempt to regain the love of his life, Adrien decides to move into the future ex-married apartment: a nursery home - The beginning, an improbable educational experience.
| Actor | Role |
|---|---|
 Vincent ElbazAdrien | Adrien |
 Laurence ArnéMaude | Maude |
 Grégory FitoussiRenaud | Renaud |
 Jean-François CayreyEmmanuel | Emmanuel |
 Nadège DabrowskiConstance | Constance |
 Bernard Le CoqMartin | Martin |
| JJuliette PivolotJuliette | Juliette |
| AAbel Mansouri AsselainAbel | Abel |
| MMaxence Chanfong-DuboisMaxence | Maxence |
 Sarah Le Huu NhoSarah | Sarah |
 Salomon Mpondo-DickaFêtard | Fêtard |
 Axelle LaffontEditrice | Editrice |
 Romain VissolClient magasin disques | Client magasin disques |
 Michel LeebMaurice | Maurice |
 Blanche RavalecEdith | Edith |
 Laurent MoutonPère Violette | Père Violette |
 Vanessa DemouyYasmine | Yasmine |
 Marie TirmontMère Gaspard | Mère Gaspard |
 Herrade Von MeierFanny | Fanny |
| MMokhtar GuetariVideur | Videur |
 Marion SéclinNarine | Narine |
 Claire PérotDelphonse | Delphonse |
 Mathieu LamboleyPianiste | Pianiste |
 Raphaël CaratyHuissier | Huissier |
| CCarolina JaramilloProfesseure d'espagnol | Professeure d'espagnol |
| AAlbert BordesGaspard | Gaspard |
| BBartholomé BordesGaspard | Gaspard |
 Joséphine de MeauxEloïse | Eloïse |