Top Western performance horse industry trainers participated in a recent episode of Yellowstone. They are (from left to right): Kelby Phillips, Todd Bergen, Bob Avila, Corey Cushing and Tracer Gilson. • Photo courtesy of Corey Cushing.

Who They Rode: Trainers Bring Top Horses to Yellowstone TV Show

When the actors and actresses from the hit series Yellowstone walk the red carpet, reporters ask who they're wearing. When horse trainers appear on the show, horse people ask -- who were they riding?