Yes. A horse trainer who owns the majority of the horses used in the filming of the Heartland is John Scott. He's well known in the movie industry, and his horses have starred in several movies. John has 160 horses that he uses exclusively for film. Some are cast horses, and some are trained stunt horses. He has worked with actors such as Tom Hanks, Dustin Hoffman, Harrison Ford, Julia Roberts, Meryl Streep, and others.