Casting
Maciej Litkowski
Joko (voice)
Anna Januszewska
Mother (voice)
Beata Zygarlicka
Wanda (voice) / Additional Voices (voice)
Konrad Pawicki
Sir Barnet (voice) / Baptist (voice)
Arkadiusz Buszko
Doctor Fersen (voice) / Professor Krank (voice)
Paweł Niczewski
Doctor (voice)
Adam Kuzycz-Berezowski
Bavastro (voice)
Maria Dąbrowska
Amica (voice)