Luke Grimes reveals how he disappoints Yellowstone fans

Luke Grimes reveals how he disappoints Yellowstone fans Luke Grimes has heard lots of strange comments from fans of Yellowstone. 24 April 2026 Yellowstone fans have been disappointed to learn that Luke Grimes isn't a "real cowboy". Luke Grimes starred on the hit TV show The 42-year-old actor starred as Kayce Dutton on the hit TV show between 2018 and 2024, and Luke has shared some of the strangest comments he's heard from fans of the series. Speaking to the Toronto radio station CHUM 104.5, Luke - who has reprised the role for the CBS spinoff, Marshals - shared: "Like, they were so obsessed.