Stanisław Tym as KO Instructor

Jolanta Lothe as Young Girl

Wanda Stanisławska-Lothe as Mamoniowa

Jerzy Dobrowolski as Instructor's Friend

Andrzej Dobosz as Philosopher

Feridun Erol as Seaman

Jan Himilsbach as Sidorowski

Jerzy Karaszkiewicz as Angler

Zdzisław Maklakiewicz as Engineer Mamon

Maciej Michalak as Passenger

Ryszard Pietruski as Captain

Wojciech Pokora as Passenger

Roman Suszko as Passenger

Waclaw Antczak as Commission Member

Jadwiga Bezanson as Passenger

Eugeniusz Gajewski as Commission Member

Michalina Gesicka as Passenger

Irena Izykowska as Sidorowska

Janusz Kłosiński as Józio

Leszek Kowalewski as Poet

Wawrzyniec Trybala-Olszewski as Singer

Józef Piekarski as Passenger

A. Sobczyk as Judge

Roman Sokolowski as Quiz Participant

Piotr Pietrzyk as Quiz Participant

Zofia Czerwińska as Passenger (uncredited)

Janusz Głowacki as Passenger (uncredited)

Tomasz Lengren as Passenger (uncredited)

Wojciech Roszyk as Wojtuś / Piotruś (uncredited)