The Black Room - Cast

Boris Karloff

Baron Gregor de Berghman / Anton de Berghman
Actor

Marian Marsh

Thea Hassel
Actor

Robert Allen

Lt. Albert Lussan
Actor

Thurston Hall

Col. Paul Hassel
Actor

Katherine DeMille

Mashka
Actor

John Buckler

Beran - the gypsy
Actor

Henry Kolker

Baron de Berghman
Actor

Colin Tapley

Paul Hassel as a young lieutenant
Actor

Torben Meyer

Peter, the majordomo
Actor

John George

Inn Waiter (uncredited)
Actor

John Bleifer

Franz - Captured Assassin-Villager (uncredited)
Actor

Marion Lessing

Maria the Chambermaid
Actor

George MacQuarrie

The Judge
Actor

Robert Middlemass

The Prosecutor
Actor

Edward Van Sloan

Doctor
Actor