Cast
Wilfred Lucas
Professor Ullrich
Constance Moore
Marian Stuart
Ernest Truex
Professor Peabody
Frank Melton
Dave 'Tex' Hodges
Carlyle Moore Jr.
Moss
Spec O'Donnell
Rogers
Alan Ladd
Student (uncredited)
Dixie Dunbar
Dotty Wright
William Lundigan
Bob Potter
Mark Daniels
Jay Hill
Tommy Wonder
Tommy
Barlowe Borland
Professor Harrison
Marc Cramer
Billy Thomas