Joko

Konrad Pawicki

Sir Barnet (voice) / Baptist (voice)

Adam Kuzycz-Berezowski

Bavastro (voice)

Maciej Litkowski

Joko (voice)

Anna Januszewska

Mother (voice)

Beata Zygarlicka

Wanda (voice) / Additional Voices (voice)

Arkadiusz Buszko

Doctor Fersen (voice) / Professor Krank (voice)

Paweł Niczewski

Doctor (voice)

Maria Dąbrowska

Amica (voice)