Somewhere between Montmartre and Saint-Germain-des-Prés, Jean-Jacques Sempé and René Goscinny lean over a large white sheet of paper and bring to life a mischievous and endearing boy, Little Nicolas. From schoolyard games and fights to summer camp pranks and camaraderie, Nicolas lives a merry and enriching childhood – and brings friendship and newfound life to his creators, too.
| Actor | Role |
|---|---|
 Alain ChabatGoscinny (voice) | Goscinny (voice) |
 Laurent LafitteSempé (voice) | Sempé (voice) |
 Simon FaliuNicolas (voice) | Nicolas (voice) |
 Alban AumardBouillon (voice) | Bouillon (voice) |
 Alicia HavaRufus (voice) | Rufus (voice) |
| AAurélien de BrancheGeoffroy (voice) | Geoffroy (voice) |
 Claire DumasMistress (voice) | Mistress (voice) |
 Delphine BarilMrs. Courteplaque (voice) | Mrs. Courteplaque (voice) |
| EElisa BardeauMarie-Edwige (voice) | Marie-Edwige (voice) |
| LLucie BolzeThe Mother on the Dock (voice) | The Mother on the Dock (voice) |
 Marc ArnaudGym Teacher / Photographer (voice) | Gym Teacher / Photographer (voice) |
| MMaud CoullombCouple (voice) | Couple (voice) |
 Nicolas ChupinLestouffe (voice) | Lestouffe (voice) |
 Octave BossuetAlceste (voice) | Alceste (voice) |
 Quentin FaureInterviewer / Controller / Journalist (voice) | Interviewer / Controller / Journalist (voice) |
 Serge FaliuPapa / Léon (voice) | Papa / Léon (voice) |