Cast
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 (as Annette Carrell)
Alexander Gauge
Tetzel
Henry Oscar
Irving Pichel
Brueck