The Devil Horse

Harry Carey

Bob Norton / Roberts

Noah Beery

Canfield

Frankie Darro

Frankie Graham - The Wild Boy

Apache

El Diablo - The Devil Horse

Greta Granstedt

Linda Weston

Barrie O'Daniels

Lee Weston

Edward Peil Sr.

The Sheriff (as Edward Peil)

Jack Mower

Adams, Vigilante leader

Al Bridge

Henchman Curley Bates

Jack Byron

Henchman Jake

John Paul Jones

Matthew Boyd (banker) (as J. Paul Jones)

Carl R. Botefuhr

Little Frankie [Chs. 1 & 12] (as Carli Russell)

Lew Kelly

The Boy's Father [Chs. 1 & 12] (as Lou Kelley)

Victor Adamson

Henchman (uncredited)

Yakima Canutt

Slim [Chs. 3-5, 8] / Henchman [Chs. 11-12] (uncredited)