The Black Room [Russian]

Boris Karloff

Baron Gregor de Berghman

Boris Karloff

Anton de Berghman

Marian Marsh

Thea Hassel

Robert Allen

Lt. Albert Lussan

Thurston Hall

Col. Paul Hassel

Katherine DeMille

Mashka

John Buckler

Beran

Henry Kolker

Baron Frederick de Berghman

Colin Tapley

Lt. Paul Hassel

Torben Meyer

Peter

John Beck

Court Clerk

Daniel Joseph Bleifer

Anton as a Child

John Bleifer

Franz - Captured Assassin-Villager

Sidney Bracey

Gregor's Hairdresser

Egon Brecher

Karl - Lead Villager

Carrie Daumery

Member of the Court

Edwards Davis

Member of the Court

Victor De Linsky

Michael the Footman

Abe Dinovitch

Gatekeeper