Jan Jurewicz
— Jan
Franciszek Muła
— Paweł Socha
Paweł Paradowski
— Jan as a child
Maria Probosz
— Urszula
Hanna Banaszak
— Halina
Tomasz Zaliwski
— Jan's father
Anna Milewska
— Jan's mother
Józef Pieracki
— Organist
Zdzisław Kozień
— Parish priest
Leon Niemczyk
— University dean
Halina Buyno-Łoza
— Caretaker
Erwin Nowiaszak
— Professor
Janusz Pac-Pomarnacki
— Lecturer
Krystyna Demska-Olbrychska
— Zośka
Kazimierz Wysota
— Nurse (uncredited)
Maria Zbyszewska
— Sochowa (uncredited)