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