Nick is riding a sorrel horse with a distinctive white blaze that has a right-facing point at the top when viewed from the front. Second later, a Black cowboy in the Barkley crew is shown on the same horse on the same cattle drive.
When Heath (Lee Majors) and Barrett (John Milford) are fighting in the bunk house, the stunt doubles don't look anything like Majors or Milford. Milford's double has much darker hair, and more of it then Milford does, and Majors' double is taller and not as beefy as Majors is.