Director/a
Irving Pichel
DIRECTOR/A
Reparto (por orden de créditos)
Niall MacGinnis
Martin Luther
John Ruddock
Vicar von Staupitz
Pierre Lefevre
Spalatin
Guy Verney
Melanchthon
Alastair Hunter
Carlstadt
David Horne
Duke Frederick
Fred Johnson
Prior
Philip Leaver
Pope Leo X
Heinz Piper
Dr. Eck
Leonard White
Emissary
Egon Strohm
Cardinal Alexander
Annette Carell
Katherine von Bora
Alexander Gauge
Tetzel
Henry Oscar
Zeremonienmeister
Chancellor Brueck
Ronald Adam
John, Duke of Saxony
Joss Ambler
Bishop
William Abney
Erzbischof von Mainz
Michael Maick
ACTOR
Wolfgang Oelze
Magister
Hans Lefebre
Charles V
John Wiggin
Narrator
Ernst Fritz Fürbringer
Peter Ustinov
Duke Francis of Luneberg (uncredited)
Jaspar von Oertzen
Landgraf Philip (uncredited)
Mathias Wieman
German Narrator (uncredited)