An auto mechanic suspects sabotage in a recent series of fatal racecar accidents.
Jerry O'Connor
Jane Delano
Buddy Buttle
P.G. Delano
Ed Eberhart
Doc Heath
Jose "Rocks" Rivera
Hank Hogan
Lefty Simmons
Tim McKelvy
Jim Nixon
Jenkins
Hospital Interne (as Jack Carlton)
Woman in Movie House (uncredited)
Susan, Laboratory Analyst (uncredited)
