Rex, a wild stallion, and Rinty, a police dog, are pals. Their master , John Sheldon, is framed for murder, and Alice Ingram plans to race Rex for money to pay for John's legal defense. Meantime, Frank Nolan, who has falsely accused John, sets out to steal Rex for himself.
Rex King of the Wild Horses
Rinty
John Sheldon
Alice Ingram
Henry
Henchman Jim Luger
Frank Nolan
Charles Ingram [Chs. 1, 3, 12]
Henchman Raymond
Henchman Mack
Lewis R. Lou Salters [Ch. 1]
Sheriff [Chs. 1, 7-8, 11-12]
Henchman Parks [Ch. 1]
