Distribution
Julian Madison
Charlie Penlon
Robert McKenzie
Sheriff Graves, Sheriff
George Morrell
Deputy Ab Barber
Eric Mayne
Professor at Service (Uncredited)
Charles Starrett
Kenneth 'Ken' Harris
John Davidson
Professor Brand
Broderick O'Farrell
Dr. Howell
Jane Keckley
Bostwick's Housekeeper
Marion Shilling
Jean Coates
Eddie Tamblyn
Bill Smart
Doris Lloyd
Lucille Coates
Herbert Bunston
College Professor
Robert Warwick
Joseph Harris
Edward Van Sloan
Professor Bostwick
James Bush
Byron Coates / John Meseraux
Helen Jerome Eddy
Miss Lottie Case