Andrew Gentling
Catherine Sykes
Martha Wier
Helen Gentling
Captain Gledhill
Professor Morris Avrum
Henry Pritchard
Detective Pacciano
Dr. Markheim
Montgomery Thatcher
Mr. Arnspiger
Dr. Herbert Watson
Arnold Sykes
Freddie Blair
Old Lady at Lecture (uncredited)
Waitress (uncredited)
Truck Driver (uncredited)
Reporter (uncredited)
Policeman (uncredited)
Maid (uncredited)
Bellhop (uncredited)
Bald Man at Lecture (uncredited)
Newspaper Girl (uncredited)
