Cast
Frank Orth
Tim McKelvy
Addison Richards
Ed Eberhart
Helen Jerome Eddy
Susan, Laboratory Analyst (uncredited)
Dennis O'Keefe
Jerry O'Connor
Nat Pendleton
Buddy Buttle
Harry Carey
P.G. Delano
Frank M. Thomas
Jim Nixon
Barbara Bedford
Woman in Movie House (uncredited)
Si Jenks
Jenkins
Clayton Moore
Hospital Interne (as Jack Carlton)
Cecilia Parker
Jane Delano
Charley Grapewin
Doc Heath
Alan Curtis
Jose "Rocks" Rivera
Tom Neal
Hank Hogan
Tom Collins
Lefty Simmons