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Miriam Martín as María (voice) |
 |
Belén Rueda as Maestra (voice) |
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María Temprado as Amiga de María (voice) |
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Blanca Formáriz as María adulta (voice) |
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Estefanía Nussio as Asistente social (voice) |
| Visual Effects | David Ordieres | Animation Director |
| Sound | Victor Peral | Music |
| Directing | Pedro Solís | Director |
| Camera | Juan Jesús García Galocha | Director of Photography |
| Writing | Pedro Solís | Screenplay |
| Production | Nicolás Matji | Producer |
| Editing | Pedro Solís | Editor |
| Sound | Victor Peral | Original Music Composer |
