Klub szachistów

Andrzej Łapicki

Wacław Urbin

Maria Ciesielska

Iza

Ignacy Machowski

Man introducing Urbin

Mieczysław Pawlikowski

Henryk Radek

Seweryn Butrym

Club Member

Andrzej Krasicki

Club Member

Wiktor Nanowski

Club Member

Zofia Niwińska

Aleksandra Leszczyńska

Dudek's Mother

Wanda Elbińska

Leon Pietraszkiewicz

Traders' Union Chairman

Maciej Maciejewski

Mayor

Tadeusz Surowa

Club Member

Maria Homerska

Woman talking with Urbin (uncredited)

Bogumił Kobiela

Dudek (uncredited)