Scientists assembled to prove their methods are effective in criminal investigation try to solve a series of murders.
Patrick Norris
Lola Hobbs
Sam O'Donnell
Lou Boyd
Police Chief Hobbs
Dr. Talbot
Prof. Holtz
Prof. Cordet
Maj. Blaine
Mr. Brooks
Mr. DeSoto
Detective Bennett
Joe Carpa
Henchman Bishop
Henchman Scarlatti
Henchman Felton
Walter A. Adams, gang accountant
Walter W. Carter
Bill "Goldy" Golden
Mom Norris
