Characters played by Bela Lugosi
Degar
Characters played by Wallace Ford
Tom Hartley
Characters played by Sally Blane
Mary Rinehart
Characters played by Bryant Washburn
John Rinehart
Characters played by Tully Marshall
Richard Rinehart
Characters played by Gertrude Michael
Sarah Rinehart
Characters played by George Meeker
Prof. Arthur Hornsby
Characters played by Mary Frey
Sika
Characters played by Matt McHugh
Detective Bailey
Characters played by Edwin Maxwell
The Maniac
Characters played by Pat Harmon
Cab Driver
Characters played by Otto Hoffman
Professor
Characters played by Eric Mayne
Prof. John Andre
Characters played by Dave O'Brien
Young Victim
Characters played by Richard Powell
Detective Dooley
Characters played by Oscar Smith
Martin the Chauffeur
Characters played by Emma Tansey
Little Old Lady