Jan Koecher

Character: Stanisław Moniuszko

Jerzy Duszyński

Character: Włodzimierz Wolski

Barbara Kostrzewska

Character: Paulina Rivoli

Nina Andrycz

Character: Maria Kalergis

Danuta Szaflarska

Character: Countess Krystyna

Janusz Warnecki

Character: Professor

Jan Kurnakowicz

Character: Prof. Jan Quatrini

Stanisław Żeleński

Character: Józef Sikorski, music critic

Gustaw Buszyński

Character: Theater Director Ignacy Abramowicz

Zdzisław Mrożewski

Character: Count Alfred (as Z. Morzewski)

Tadeusz Cygler

Character: Julian Dobrski

Wacław Domieniecki

Character: Italian Tenor

Józef Karbowski

Character: Secretary

Jan Ciecierski

Character: Bishop

Kazimierz Opaliński

Character: Theater Records-keeper

Ludwik Sempoliński

Character: Klimowicz

Krystyna Karkowska

Character: Magdalenka

Halina Billing-Wohl

Character: Moniuszka (wife)

Wacław Ścibor-Rylski

Character: Sacchetti

Aleksander Gąssowski

Character: Jefimow

Henryk Modrzewski

Character: Sennewald

Zenon Burzyński

Character: Tunio

Ludwik Benoit

Character: Sculptor

Zdzisław Szymański

Character: Reporter

Mieczysław Pawlikowski

Character: Musician

Tadeusz Pluciński

Character: Painter

Ryszard Barycz

Character: Poet

Emil Karewicz

Character: Georg

Jan Zielinski

Character: stage manager

Bronisław Darski

Character: Porter (uncredited)

Jerzy Kaczmarek

Character: (uncredited)

Maria Kaniewska

Character: Moniuszko's Co-Passenger (uncredited)

Krystyna Królikiewicz

Character: (uncredited)

Wiesława Kwaśniewska

Character: (uncredited)

Józef Nowak

Character: Student with Flowers (uncredited)

Janina Ordężanka

Character: (uncredited)

Lech Ordon

Character: Publisher (uncredited)

Bronisław Pawlik

Character: Shopkeeper (uncredited)

Czesław Piaskowski

Character: (uncredited)

Jerzy Pietraszkiewicz

Character: (uncredited)

Olga Sawicka

Character: (uncredited)

Teresa Szmigielówna

Character: (uncredited)

Kazimierz Szubert

Character: (uncredited)

Janusz Ściwiarski

Character: (uncredited)

Tadeusz Teodorczyk

Character: Reporter (uncredited)