His works have been adapted for film and television numerous times, but he himself was not an actor in these productions.
Here are some of the film and television adaptations of Rex Beach's works:
Films:
* The Spoilers (1923): Starring Tom Mix and Eileen Percy.
* The Spoilers (1942): Starring Marlene Dietrich, John Wayne, and Randolph Scott.
* The Iron Trail (1921): Starring William S. Hart.
* The Ne'er-Do-Well (1925): Starring Rod La Rocque and Lois Wilson.
* The Barrier (1926): Starring Marguerite De La Motte and Richard Dix.
Television:
* The Spoilers (1955): A television film starring Jeff Chandler and Barbara Stanwyck.
* The Iron Trail (1956): A television episode of "The Adventures of Jim Bowie."
These are just a few examples, and there have been many more adaptations of Rex Beach's works over the years.