Zbigniew Cybulski

Character: Romek Brzozowski

Ryszard Filipski

Character: Edek Słowik

Adam Fiut

Character: Filip Janik

Mariusz Gorczyński

Character: Rysiek Bednarek

Roman Polanski

Character: 'Mały'

Michał Szewczyk

Character: Witek

Jadwiga Andrzejewska

Character: Filip's Mother

Anna Ciepielewska

Character: Danusia

Katarzyna Karska

Character: Girl

Barbara Rachwalska

Character: Mały's Mother

Ewa Zdzieszyńska

Character: Halina

Jerzy Kozakiewicz

Character: Karol

Józef Kalita

Character: MO Lieutenant

Ryszard Lomnicki

Character: MO Lieutenant

Janusz Majewski

Character: Man buying theatre tickets from Mały (uncredited)

Tadeusz Ordeyg

Character: Filip's Father (uncredited)

Wiesław Rutowicz

Character: Delinquent at a Shooting Range (uncredited)