Joseph Fiennes

as Martin Luther

Jonathan Firth

as Girolamo Aleander

Claire Cox

as Katharina von Bora

Alfred Molina

as Johann Tetzel

Peter Ustinov

as Frederick

Bruno Ganz

as Johann von Staupitz

Uwe Ochsenknecht

as Leo X

Maria Simon

as Hanna

Mathieu Carrière

as Cardinal Jacob Cajetan

Benjamin Sadler

as Georg Spalatin

Jochen Horst

as Andreas Karlstadt

Marco Hofschneider

as Ulrich

Anian Zollner

as Philipp von Hessen

Herb Andress

as Gunter

Torben Liebrecht

as Charles V

Lars Rudolph

as Philip Melanchton

Christopher Buchholz

as Von der Eck

Timothy Peach

as Von Miltitz

Felix Klare

as Student

Jens Winter

as Fugger-Revisor

Florian Panzner

as Student

Anatole Taubman

as Otto

Tom Strauss

as George of Brandenburg

Gene Reed

as John of Saxony

Johannes Lang

as Albert, Archbishop of Mainz

Jeff Boyd

as Prior

Jeff Caster

as Matthew

Hussi Kutlucan

as Blacksmith

Michael Traynor

as Hans Luther

Joost Siedhoff

as Old Monk

Lena Krimmel

as Theresa

Doris Prusova

as Grete

Jindrich Fajst

as Thomas

Jan Nemejovský

as Albert's Secretary

Jiří Maria Sieber

as Executioner