Boris Karloff

Baron Gregor de Berghman / Anton de Berghman

Marian Marsh

Thea Hassel

Robert Allen

Lt. Albert Lussan

Thurston Hall

Col. Paul Hassel

Katherine DeMille

Mashka

John Buckler

Beran - the gypsy

Henry Kolker

Baron de Berghman

Colin Tapley

Paul Hassel as a young lieutenant

Torben Meyer

Peter, the majordomo