Chester Morris

Detective Anderson

Una Merkel

Dale Van Gorder

Richard Tucker

Mr. Bell

DeWitt Jennings

Police Captain

Sidney D'Albrook

Police Sergeant

Grayce Hampton

Miss Cornelia van Gorder

Maude Eburne

Lizzie Allen

Spencer Charters

The Caretaker

William Bakewell

Brook

Gustav von Seyffertitz

Dr. Venrees

Charles Dow Clark

Detective Jones

Ben Bard

The Unknown