Wojciech Pszoniak as Mieszko I

Marek Bargiełowski as Czcibór, Mieszko's brother

Wanda Neumann as Dobrawa

Franciszek Pieczka as Mrokota

Bolesław Płotnicki as Ziemiomysł, Mieszko's father

Henryk Bąk as Boleslaw I Okrutny, Dubrawa's father

Tadeusz Białoszczyński as Markgraf Geron

Janusz Bylczyński as Markgraf Hodon

Włodzimierz Maciudziński as Świętopełk, Mieszko's brother

Czesław Wołłejko as Emperor Otto I 'The Great'

Andrzej Szalawski as Odolan, Mieszko's Uncle

Iga Mayr as The Witch

Edmund Fetting as Krystian, Dobrawa's brother

Aleksander Fogiel as Man at Baptism

Aleksander Gąssowski as The Resigning Council of Elders Member

Wirgiliusz Gryń as Żegota

Lech Grzmociński as Bronisz

August Kowalczyk as Czech Aristocrat

Krzysztof Kowalewski as Bolesław, Son of Bolesław I Okrutny

Jerzy Obłamski as

Lech Ordon as Radost

Leonard Pietraszak as Zygfryd

Ryszard Ronczewski as Arabian Salesman

Paweł Rouba as

Lech Skolimowski as

Kazimierz Wichniarz as Dźwigor

Feliks Żukowski as Archbishop

Marek Dowmunt as

Jerzy Braszka as Czcibór's Soldier

Marian Gańcza as

Teodor Gendera as Soldier

Tadeusz Jastrzębowski as

Janusz Krawczyk as

Edward Lach as

Bogdan Łysakowski as Mieszko's Soldier

Bernard Michalski as Mieszko's Soldier

Czesław Piaskowski as

Stefan Szmidt as Mieszko's knight

Józef Grzeszczak as Rider (uncredited)

Jan Piechociński as Mieszko's Soldier / Czech Prince (uncredited)

Aleksander Sewruk as (uncredited)