- Dennis O'Keefe
- Jerry O'Connor
- Cecilia Parker
- Jane Delano
- Nat Pendleton
- Buddy Buttle
- Harry Carey
- P. G. 'Pinky' Delano
- Addison Richards
- Ed Eberhart
- Charley Grapewin
- 'Doc' Heath
- Alan Curtis
- Jose 'Rocks' Rivera
- Tom Neal
- 'Hank' Hogan
- Tom Collins
- 'Lefty' Simmons
- Frank Orth
- Tim 'Mac' McKelvy
- Frank M. Thomas
- Jim Nixon
- Si Jenks
- Mr. Jenkins
- Clayton Moore
- Hospital Interne
- King Baggot
- Race Track Spectator
- Barbara Bedford
- Woman in Movie House
- Helen Jerome Eddy
- Susan - Laboratory Analyst
- Fred Frame
- Race Car Driver
- Fred Friday
- Race Car Driver
- Roger Gray
- Policeman
- Ronnie Householder
- Race Car Driver
- John Kelly
- Towing Man
- Carey Loftin
- Starter
- Rex Mays
- Race Car Driver
- Louis Meyer
- Race Car Driver
- King Mojave
- Rex 'Smitty' Smith
- Kelly Petillo
- Race Car Driver
- Lee Phelps
- Jim Webster - Mechanic
- Walter Soderling
- Mr. Fowler
- Art Sparks
- Race Car Driver
- Phillip Terry
- Art Thorpe - Race Car Driver
- Joel Thorne
- Race Car Driver
- Frank Whitbeck
- Voice of Newsreel Announcer
