| Actor | Andrzej Kopiczyński (as Mikołaj Kopernik), Andrzej Antkowiak (as Andrzej Kopernik), Klaus Peter Thiele (as Jerzy Joachim Retyk), Henryk Boukołowski (as Hipolit d'Este), Henryk Borowski (as Tiedemann Giese), Aleksander Fogiel (as Matz Schilling), Gustaw Lutkiewicz (as Jan Dantyszek), Leszek Herdegen (as Mateusz), Witold Pyrkosz (as Płotowski), Wiktor Sadecki (as Wojciech), Bogusz Bilewski (as Burgrabia), Janusz Bylczyński (as Celio Calcagnini), Leon Niemczyk (as don Alonso), Tadeusz Somogi (as Servant) |
| Actress | Barbara Wrzesińska (as Anna Schilling), Jadwiga Chojnacka (as Kacper's Mother), Emilia Krakowska (as Kacper's Wife), Jolanta Bohdal (as Krystyna), Anna Nehrebecka (as Diana d'Este), Maria Nowotarska (as Graziosa Maggi) |
| Directed By | Ewa Petelska, Czesław Petelski |
| Director of photography | Stefan Matyjaszkiewicz |
| Music by | Jerzy Maksymiuk |
| Screenplay | Jerzy Broszkiewicz, Zdzisław Skowroński |
| Links | http://www.filmpolski.pl/fp/index.php?film=12309 |
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