Characters played by Chester Morris
Detective Anderson
Characters played by Una Merkel
Dale Van Gorder
Characters played by William Bakewell
Brook
Characters played by Grayce Hampton
Miss Cornelia van Gorder
Characters played by Maude Eburne
Lizzie Allen
Characters played by Gustav von Seyffertitz
Dr. Venrees
Characters played by Spencer Charters
The Caretaker
Characters played by Charles Dow Clark
Detective Jones
Characters played by Hugh Huntley
Richard Fleming
Characters played by DeWitt Jennings
Police Captain
Characters played by Richard Tucker
Mr. Bell
Characters played by Wilson Benge
The Butler
Characters played by Chance Ward
Police Lieutenant
Characters played by Sidney D'Albrook
Police Sergeant
Characters played by S.E. Jennings
Man in Black Mask
Characters played by Ben Bard
The Unknown