Bruce Bennett
Patrick Norris
Acting
Florence Rice
Lola Hobbs
Acting
Barton MacLane
Sam O'Donnell
Acting
Joe Downing
Lou Boyd
Acting
Joseph Crehan
Police Chief Hobbs
Acting
Howard Hickman
Dr. Talbot
Acting
Edward Van Sloan
Prof. Holtz
Acting
P.J. Kelly
Prof. Cordet
Acting
Don Beddoe
Maj. Blaine
Acting
William Forrest
Mr. Brooks
Acting
Danton Ferrero
Mr. DeSoto
Acting
George Anderson
Detective Bennett
Acting
Duke York
Joe Carpa
Acting
Eddie Laughton
Henchman Bishop
Acting
George Magrill
Henchman Scarlatti
Acting
Cy Schindell
Henchman Felton
Acting
Sam Ash
Walter A. Adams, gang accountant
Acting
John Dilson
Walter W. Carter
Acting
George McKay
Bill "Goldy" Golden
Acting
Jessie Perry
Mom Norris
Acting