| Cast list |
| Sean Bean | as | Dark (voice) |
| Claire Bouanich | as | Suki enfant (French version) (voice) |
| Jim Broadbent | as | Eddie (voice) |
| Robbie Coltrane | as | James (voice) |
| Emmanuel Curtil | as | Fleck adulte (French version) (voice) |
| Martin Freeman | as | Fleck (voice) |
| Alexandre Gillet | as | Linus adulte (French version) (voice) |
| Rupert Graves | as | Linus (voice) |
| John Hurt | as | Harry (voice) |
| Anne Jolivet | as | Macheeba (French version) (voice) |
| Kwame Kwei-Armah | as | Lush (voice) |
| Jean-Pierre Marielle | as | James (French version) (voice) |
| Olivier Martret | as | Fleck enfant (French version) (voice) |
| Helen Mirren | as | Macheeba (voice) |
| Céline Montsarrat | as | Suki adulte (French version) (voice) |
| Guillaume Orsat | as | Lush (French version) (voice) |
| Pascal Renwick | as | Harry (French version) (voice) |
| Jean Rochefort | as | Eddie (French version) (voice) |
| Gwénaël Sommier | as | Linus enfant (French version) (voice) |
| Kate Winslet | as | Suki (voice) |
