Kevin Costner, who portrays John Dutton III on Yellowstone, has seven children. From his previous marriage to Cindy Silva, which lasted from 1978 to 1994, he has three adult children: Anne Costner (39), Lily Costner (36), and Joe Costner (35). Costner also has a 26-year-old son named Liam from his former relationship with Bridget Rooney.

From his most recent marriage to Christine Baumgartner, Costner has three children: Cayden (15), Hayes (14), and Grace (12). In an interview, Costner expressed concerns about being a father over 50 but hoped to be actively involved in his children's lives.

Wes Bentley, who plays Jamie Dutton, John Dutton's adopted son, has two children with his wife Jacqui Swedberg.

They welcomed their son Charles Bentley in 2010 and their daughter Brooklyn Bentley in 2014. Bentley has spoken about how fatherhood has positively impacted his life and career as an actor.

Cole Hauser, known for his role as Rip Wheeler, has three children with his wife Cynthia Hauser. They had their eldest, Ryland Hauser, in 2004, Colt Hauser in 2008, and their youngest and only daughter, Steely Hauser, in 2013. Hauser recently shared his pride in his first-born son heading off to college.

Forrie J Smith, who portrays Lloyd Pierce, has kept his family private. However, it is known that he has one son who guest-starred in Yellowstone Season 5 as a younger version of his character.

His son, Forrest Smith, is also an aspiring actor and has worked on other film projects.

Wendy Moniz, who plays Lynell Perry, was previously married to Frank Grillo. They have two children together: Liam Grillo (18) and Rio Joseph Grillo (15). Moniz also shares custody of Remy Grillo (25), who is from her ex-husband's previous marriage.

Overall, the Yellowstone cast members have diverse and loving families outside of their roles on the show.