Tadeusz Białoszczyński
— Aleksander
Jadwiga Andrzejewska
— Aleksander's Bridge Partner
Jan Ciecierski
— Aleksander's Bridge Partner
Janusz Kłosiński
— Poniatowski
Jan Rudnicki
— Aleksander's Bridge Partner
Andrzej Jurczak
— MO Scout (uncredited)
Ireneusz Kaskiewicz
— MO Lieutenant (uncredited)
Maria Klejdysz
— Waitress (uncredited)
Eugeniusz Korczarowski
— MO Scout (uncredited)
Lech Łotocki
— MO Scout (uncredited)
Jerzy Zygmunt Nowak
— Man in a Cafe (uncredited)
Edmund Fetting
— Radio Speaker (voice) (uncredited)