Liam Costner is the son of American actor Kevin Costner and his former partner, Bridget Rooney.
Costner was born in November 1996 in the US. He is the great-grandson of Art Rooney (owner of the Pittsburgh Steelers football franchise). Regarding his education, he graduated from the Oxbridge Academy. While there, he was a linebacker, running back, punter, and kicker for his school team.
Liam is currently working as a real estate agent at Frankel-Ball Realty. Here’s more about him!
Unsuccessful Marriage of His Parents
In 1994, his mother, Bridget Rooney started dating his father, Kevin Costner. The pair rarely made public appearances together and kept their love life a secret.

Source: Wikimedia Commons

Source: Twitter
After some months of dating, they broke up. Liam was born after the pair separated. Hello! Magazine has mentioned Kevin and Bridget as husband and wife; however, they’ve never confirmed their wedding.
While Bridget was pregnant, Kevin demanded a paternity test. Well, it was proved he was the biological dad of Liam. It is believed that his father has founded a sizeable trust fund for him just in case.
Mother Married Bill Koch
Liam’s mom, Bridget Rooney shared her vows with billionaire William Koch AKA Bill Koch in Colorado in 2005. Bridget is 22 years younger than her current husband.

Source: Sun Sentinel
As of September 2021, his step-father holds an estimated $2 billion net worth. He used to boast an estimated $1.7 billion fortune previously.
Liam Has Seven Half-Siblings and Four Step-Siblings
Liam Costner has eleven siblings; Annie, Lily, Joe, Cayden Wyatt, Hayes Logan, Grace Avery, Kaitlin, Wyatt, William Jr, Robin, and Charlotte Koch.
From his mother’s marriage with Bill, he has a sister named Kaitlin. His sister is into ice skating. She has also performed at Palm Beach Ice Works’ Come Fly With Me! event in 2018.

Source: Facebook
Wyatt is from his stepdad, Bill’s first marriage with Joan Granlund. His step-father also welcomed William Jr., Robin, and Charlotte Koch from his previous relationships.
The remaining six are from his father’s two marriages. With his first wife, Cindy Silva, he welcomed Annie, Lily, and Joe. Cayden, Hayes, and Grace are from his marriage with the model and handbag designer, Christine Baumgartner.

Source: Instagram

Source: Instagram
Follow Star Studds for more related news and articles.
Useful Links