Pan Kleks w kosmosie

Piotr Fronczewski

Ambroży Kleks

Henryk Bista

Great electronics

Jan Jankowski

Jacek Bronowski / Max Benson

Emilian Kamiński

You smooth it out / 'Hairy fellow'

Maryla Rodowicz

Linella

Bohdan Smoleń

Jarzabek / Manuel Karmello de Bazar

Ján Mildner

Chinese emperor

Mieczysław Gajda

Melodarek (voice) (uncredited)

Irena Kwiatkowska

Information orb (voice) (uncredited)

Henryk Talar

Computer Lucas (voice) (uncredited)