Boris KarloffBoris Karloff was 47 in The Black Room as 'Baron Gregor de Berghman / Anton de Berghman'.
Marian MarshMarian Marsh was 21 in The Black Room as 'Thea Hassel'.
Robert AllenRobert Allen was 29 in The Black Room as 'Lt. Albert Lussan'.
Thurston HallThurston Hall was 53 in The Black Room as 'Col. Paul Hassel'.
Katherine DeMilleKatherine DeMille was 24 in The Black Room as 'Mashka'.
John BucklerJohn Buckler was 29 in The Black Room as 'Beran - the gypsy'.
Henry KolkerHenry Kolker was 60 in The Black Room as 'Baron de Berghman'.
Colin TapleyColin Tapley was 28 in The Black Room as 'Paul Hassel as a young lieutenant'.
Torben MeyerTorben Meyer was 50 in The Black Room as 'Peter, the majordomo'.
John GeorgeJohn George was 37 in The Black Room as 'Inn Waiter (uncredited)'.
John BleiferJohn Bleifer was 33 in The Black Room as 'Franz - Captured Assassin-Villager (uncredited)'.
Marion LessingMarion Lessing was >> in The Black Room as 'Maria the Chambermaid'.
George MacQuarrieGeorge MacQuarrie was >> in The Black Room as 'The Judge'.
Robert MiddlemassRobert Middlemass was 51 in The Black Room as 'The Prosecutor'.
Edward Van SloanEdward Van Sloan was 52 in The Black Room as 'Doctor'.
Roy William NeillRoy William Neill was 47 in The Black Room as 'Director'
Allen G. SieglerAllen G. Siegler was 43 in The Black Room as 'Director of Photography'Arthur StrawnArthur Strawn was >> in The Black Room as 'Screenplay, Story'Richard CahoonRichard Cahoon was 29 in The Black Room as 'Editor'R. H. BassettR. H. Bassett was 56 in The Black Room as 'Music'Louis SilversLouis Silvers was 45 in The Black Room as 'Music'
Edward BerndsEdward Bernds was 30 in The Black Room as 'Sound'Jack CosgroveJack Cosgrove was 33 in The Black Room as 'Matte Painter'Stephen GoossonStephen Goosson was 46 in The Black Room as 'Art Direction'Fayte M. BrowneFayte M. Browne was 39 in The Black Room as 'Camera Operator'