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