 Kinga SienkoIrka "Ika" | Irka "Ika" |
 Wojciech PuzynskiGroszek | Groszek |
 Bogusz BilewskiJean | Jean |
 Zofia KucównaGroszek's Mother | Groszek's Mother |
 Janusz KłosińskiEustachy Kużewik | Eustachy Kużewik |
 Urszula ModrzyńskaHanka | Hanka |
 Jan MatyjaszkiewiczJózef | Józef |
 Zygmunt MalawskiOpel Captain Owner | Opel Captain Owner |
 Bronisław PawlikGroszek's Father | Groszek's Father |
 Mieczysław StoorBob | Bob |
 Joanna WalterNot listed | Not listed |
 Andrzej SzczepkowskiIka's Father | Ika's Father |
 Teodor GenderaPlane Captain (uncredited) | Plane Captain (uncredited) |
 Mariusz GorczyńskiVega Citizen (uncredited) | Vega Citizen (uncredited) |
 Zbigniew JózefowiczPoliceman Arresting Kidnappers (uncredited) | Policeman Arresting Kidnappers (uncredited) |
 Barbara ModelskaVega Citizen (uncredited) | Vega Citizen (uncredited) |
 Jan SuzinTV Announcer (uncredited) | TV Announcer (uncredited) |
 Roman WilhelmiVega Citizen (uncredited) | Vega Citizen (uncredited) |
| EEdyta WojtczakTV Announcer (uncredited) | TV Announcer (uncredited) |
 Stanisław MilskiOpel Captain (voice) | Opel Captain (voice) |
 Kazimierz WichniarzJak (voice) | Jak (voice) |
| DDanuta PrzesmyckaIrka "Ika" (voice) (uncredited) | Irka "Ika" (voice) (uncredited) |