Pan Kleks w kosmosie: Reparto
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)
Monika Sapilak
Agnes
Piotr Ptaszyński
Penny Benson
Zofia Merle
Marciniak
Zbigniew Buczkowski
Alojzy Bąbel
Nina Gocławska
Gina Casate
Zdzisława Specht
Gloria Casate
Anna Frankowska-Teter
Journalist
Marian Glinka
Scrapyard Guard
Marek Sierocki
'Internews' Host
Natalia Babińska
Student
Sylwin Dąblewski
Student
Alicja Gradowska
Student
Dariusz Kacprzak
Student
Marcin Gruchalski-Buszta
Student
Wojciech Klata
Student
Marzena Krzysztof
Student
Sebastian Mikołajczyk
Student
Anna Nieduszyńska
Student
Artur Pontek
Student
Beata Reczyńska
Student
Maciej Skotnicki
Student
Aleksander Sosna
Student
Magda Sternik
Student
Janusz Suski
Student
Katarzyna Śródka
Student
Magda Wierzcholska
Student
Paweł Wiśniewski
Student
Mateusz Wolski
Student
Gerard Wtykło
Student
Urszula Zalewska
Student
Karolina Zbrożek
Student
Magdalena Żydek
Student
Jacek Domański
Air traffic control officer (uncredited)
Jerzy Moes
Embassy official (uncredited)
Marcin Troński
Prime minister of the planet
Alfred Freudenheim
Space fleet admiral
Witold Dębicki
Dr. Paj-Chi-Wo
Jan Himilsbach
Guard
Maria Probosz
Sandy
Beata Kozidrak
Princess from rock-comet
Leon Niemczyk
Portugal Monk (uncredited)