United Kingdom, May 25 -- Luke Grimes has admitted that becoming a father for the first time changed the way he "treats everyone" in his life.

The actor starred as Kayce Dutton in the western TV show - a role he has reprised for new programme Marshals.

He acted alongside Brecken Merrill, now 17, who played Kayce's son Tate, but Luke told Indiewire.com that it was only when he and wife Bianca welcomed son Rigel in October 2024 that everything changed.

He said: "The whole run of Yellowstone, I was just guessing. I didn't know what being a father was like.

"But I think being a father changes the way I not only treat my pretend son, but the way I treat everyone.

"Now I see everyone as a baby that just got big - I give people a lot more g...