Fred Mace
The Speed Demon
Kate Toncray
The Speed Demon's Wife
Dell Henderson
Racing Official
Jack Pickford
The Speed Demon's Son
Sylvia Ashton
The Speed Demon's Wife's Friend
?
William J. Butler
In Crowd
Edward Dillon
Racing Spectator (as Eddie Dillon)
?
Harry Hyde
A Judge
Charles Hill Mailes
Kudge (as Charles H. Mailes)
Mack Sennett
Minor Role (unconfirmed)