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Maciej Litkowski as Joko (voice) |
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Anna Januszewska as Mother (voice) |
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Beata Zygarlicka as Wanda (voice) / Additional Voices (voice) |
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Konrad Pawicki as Sir Barnet (voice) / Baptist (voice) |
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Arkadiusz Buszko as Doctor Fersen (voice) / Professor Krank (voice) |
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Paweł Niczewski as Doctor (voice) |
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Adam Kuzycz-Berezowski as Bavastro (voice) |
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Maria Dąbrowska as Amica (voice) |
| Writing | Justyna Celeda | Writer |
| Production | Piotr Szczepanowicz | Producer |
| Production | Piotr Szczepanowicz | Co-Producer |
| Writing | Izabela Plucińska | Writer |
| Directing | Izabela Plucińska | Director |
| Production | Grzegorz Wacławek | Producer |
| Sound | Aliaksander Yasinski | Original Music Composer |
| Sound | Aliaksander Yasinski | Musician |
| Production | Marcela Vrátilová | Production Manager |
| Writing | Jesse Larner | Script Consultant |
| Production | Paulina Ratajczak | Executive Producer |
| Writing | Roland Topor | Theatre Play |
| Sound | Barbara Kapica | Sound Effects Editor |
| Editing | Nikodem Chabior | Editor |
| Writing | Anna Jadowska | Script Consultant |
| Production | Martyna Bochniak | Assistant Production Manager |
| Production | Paulina Ratajczak | Co-Producer |
| Art | Fu Fu Frauenwahl | Background Designer |
| Production | Karsten Marten | Production Manager |
| Crew | Jesse Larner | Translator |
| Production | Grzegorz Skorupski | Line Producer |
| Production | Martin Vandas | Co-Producer |
| Sound | Marco Čaňo | Musician |
| Crew | Agnieszka Nowińska | Translator |
| Production | Dominika Krysiewicz | Assistant Production Manager |
| Production | Małgorzata Bochenek | Accountant |
| Writing | Stéphane Piera | Script Consultant |
| Production | Karsten Marten | Line Producer |
| Art | Susanna Jerger | Set Designer |
| Art | Yann Jouette | Set Designer |
| Art | Dominika Wyrobek | Set Designer |
| Crew | Milada McGrath | Translator |
| Sound | Michał Fojcik | Sound Director |
| Production | Martin Vandas | Producer |
| Production | Izabela Plucińska | Co-Producer |
| Visual Effects | Izabela Plucińska | Animation |
| Visual Effects | Martin Pertlíček | Animation |
| Visual Effects | Karolina Gołębiowska | Animation |
| Production | Maks Piłasiewicz | Production Supervisor |
