* Joakim Nätterqvist as Arn Magnusson
* Sofia Helin as Cecilia Algotsdotter
* Stellan Skarsgård as Birger Jarl
* Gustaf Skarsgård as Eskil Magnusson
* Bill Skarsgård as Erik Knutsson
* Kristofer Hivju as Magnus Broka
* Thor Kristofersson as Blot-Sveinn
* Peter Franzén as Folke Filbyter
* Vincent Perez as Arnulf of Chocques
Actresses
* Cecilia Frode as Katharina von Bjurum
* Sonja Richter as Richeza of Lotharingia
* Liv Mjönes as Sigrid
* Malin Buska as Karin Månsdotter
* Sarah Boberg as Ingrid Ylva
* Anna Sise as Maria Magdalena