Jan Koecher
Stanisław Moniuszko
Jerzy Duszyński
Włodzimierz Wolski
Barbara Kostrzewska
Paulina Rivoli
Nina Andrycz
Maria Kalergis
Danuta Szaflarska
Countess Krystyna
Janusz Warnecki
Professor
Jan Kurnakowicz
Prof. Jan Quatrini
Stanisław Żeleński
Józef Sikorski, music critic
Gustaw Buszyński
Theater Director Ignacy Abramowicz
Zdzisław Mrożewski
Count Alfred (as Z. Morzewski)
Tadeusz Cygler
Julian Dobrski
Wacław Domieniecki
Italian Tenor
Józef Karbowski
Secretary
Jan Ciecierski
Bishop
Kazimierz Opaliński
Theater Records-keeper
Ludwik Sempoliński
Klimowicz
Krystyna Karkowska
Magdalenka
Halina Billing-Wohl
Moniuszka (wife)
Wacław Ścibor-Rylski
Sacchetti
Aleksander Gąssowski
Jefimow
Henryk Modrzewski
Sennewald
Zenon Burzyński
Tunio
Ludwik Benoit
Sculptor
Zdzisław Szymański
Reporter
Mieczysław Pawlikowski
Musician
Tadeusz Pluciński
Painter
Ryszard Barycz
Poet
Emil Karewicz
Georg
Jan Zielinski
stage manager
Bronisław Darski
Porter (uncredited)
Jerzy Kaczmarek
(uncredited)
Maria Kaniewska
Moniuszko's Co-Passenger (uncredited)
Krystyna Królikiewicz
(uncredited)
Wiesława Kwaśniewska
(uncredited)
Józef Nowak
Student with Flowers (uncredited)
Janina Ordężanka
(uncredited)
Lech Ordon
Publisher (uncredited)
Bronisław Pawlik
Shopkeeper (uncredited)
Czesław Piaskowski
(uncredited)
Jerzy Pietraszkiewicz
(uncredited)
Olga Sawicka
(uncredited)
Teresa Szmigielówna
(uncredited)
Kazimierz Szubert
(uncredited)
Janusz Ściwiarski
(uncredited)
Tadeusz Teodorczyk
Reporter (uncredited)
