Characters

• 

  Leon Kuraś

  Played by: Kazimierz Kaczor
• 

  profesor Jedliński

  Played by: Bronisław Pawlik
• 

  Johan Heimann

  Played by: Henryk Talar
• 

  Władysław Niwiński

  Played by: Karol Strasburger
• 

  Zofia Niwińska

  Played by: Zofia Mrozowska
• 

  Ewelina Heimann

  Played by: Ryszarda Hanin
• 

  pan Stefan, naczelnik poczty

  Played by: Aleksander Bardini
• 

  Leopold Niwiński

  Played by: Piotr Pawłowski
• 

  Henryk Gorączko

  Played by: Marek Walczewski