Elenco - Joko
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)