Martin Luther

Niall MacGinnis

Acting

Vicar von Staupitz

John Ruddock

Acting

Spalatin

Pierre Lefevre

Acting

Melanchthon

Guy Verney

Acting

Carlstadt

Alastair Hunter

Acting

Duke Frederick

David Horne

Acting

Prior

Fred Johnson

Acting

Pope Leo X

Philip Leaver

Acting

Dr. Eck

Heinz Piper

Acting

Emissary

Leonard White

Production

Cardinal Alexander

Egon Strohm

Acting

Katherine von Bora (as Annette Carrell)

Annette Carell

Acting

Tetzel

Alexander Gauge

Acting

Henry Oscar

Acting

Brueck

Irving Pichel

Acting