Frankie Graham - The Wild Boy
El Diablo - The Devil Horse
The Sheriff (as Edward Peil)
Matthew Boyd (banker) (as J. Paul Jones)
Little Frankie [Chs. 1 & 12] (as Carli Russell)
The Boy's Father [Chs. 1 & 12] (as Lou Kelley)
Slim [Chs. 3-5, 8] / Henchman [Chs. 11-12] (uncredited)
Elliott Norton [Chs. 1, 9, 11] (uncredited)
Deputy Cooper [Ch. 5, 10, 11] (uncredited)
Martin [Ch. 1] (uncredited)
Train Conductor [Chs. 1, 11] (uncredited)
Whitney [Ch. 1] (uncredited)
Henchman [Chs. 7-10 - 11] (uncredited)
Henchman Bill (uncredited)
Henchman [Chs. 6, 8, 10] (uncredited)
Saunders [Ch. 6] (uncredited)
