Pan Kleks w kosmosie

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)

Monika Sapilak

Agnes

Piotr Ptaszyński

Penny Benson