Kevin Costner has seven kids, but only one of them works in real estate and almost never shows up in a magazine. If you searched liam costner because you saw his name attached to Kevin Costner’s family and wanted the real story, here it is. This guide covers his parents, his childhood, his siblings, his career, and why he keeps such a quiet life in 2026.
Liam Costner quick facts
| Detail | Information |
| Full name | Liam Timothy Costner |
| Born | November 15, 1996 |
| Age | 29 (as of 2026) |
| Father | Kevin Costner |
| Mother | Bridget Rooney |
| Siblings | Six half-siblings: Annie, Lily, Joe, Cayden, Hayes, Grace |
| Profession | Real estate agent |
| Location | North Palm Beach County, Florida |
| Nationality | American |
| Height | 5 feet 8 inches (173 cm) |
| Public profile | Very private, avoids media and red carpets |
Who is Liam Costner
Liam Costner is the fourth child of actor and director Kevin Costner. His mother is Bridget Rooney, an heiress connected to the family that owns the Pittsburgh Steelers. That combination gave Liam a background tied to both Hollywood and the NFL, though you would never guess it from how he lives now.
He works as a real estate agent in Florida and has kept almost every detail of his adult life away from cameras. No red carpet photos. No tell-all interviews. No social media presence that anyone has been able to track down. That silence is actually the most interesting thing about him, because most kids of famous actors end up in at least a few tabloid photos by accident.
Early life and how his parents met
Kevin Costner and Bridget Rooney had a short relationship in the mid-1990s, around the same time Kevin’s first marriage to Cindy Silva was ending. Bridget became pregnant, and Kevin reportedly asked for a paternity test before accepting the news. The test confirmed he was the father, and Liam was born on November 15, 1996.
Bridget Rooney spoke about the pregnancy in interviews at the time. She said she was confident about who the father was and was focused on enjoying the pregnancy regardless of the drama around it. Kevin set up financial support for Liam once paternity was confirmed, and from there the two families worked out a co-parenting arrangement.
This was not a simple situation. Kevin and Bridget were never married and their relationship did not continue after Liam’s birth. Still, reports describe Kevin as staying involved in his son’s life, which lines up with how he has talked about fatherhood in general over the years.
His relationship with Kevin Costner
Kevin Costner is famous for movies like Dances with Wolves, The Bodyguard, and more recently Yellowstone. He has also been open in interviews about wanting his kids around him, even casting his younger children in his film Horizon: An American Saga so they could spend time together on set.
Liam has never talked publicly about what his relationship with his father looks like day to day. There is no evidence of a falling out, and nothing suggests tension between them. It is simply a subject Liam has chosen not to discuss, and Kevin has not gone into detail about Liam specifically the way he has about his younger children.
That silence fits a pattern. Liam is the one Costner child who was born outside of a marriage, and he seems to have decided early on that he did not want his personal story turned into content. Privacy, not distance, appears to be the point.
Liam Costner’s siblings and the Costner family tree
Kevin Costner has three marriages and relationships behind his seven kids. Understanding where Liam fits helps explain the family he grew up around.
- Annie Costner – daughter with Cindy Silva, works in film production
- Lily Costner – daughter with Cindy Silva, actress
- Joe Costner – son with Cindy Silva, has appeared in a couple of his father’s films
- Liam Costner – son with Bridget Rooney
- Cayden Wyatt Costner – son with Christine Baumgartner
- Hayes Logan Costner – son with Christine Baumgartner, appeared in Horizon
- Grace Avery Costner – daughter with Christine Baumgartner
Liam sits in the middle of this group by age and stands apart from all of them in one clear way: he is the only child from the Bridget Rooney relationship, which makes him the odd one out in family photos that usually feature the Cindy Silva or Christine Baumgartner sides. He also has a younger half-sister, Kaitlin Koch, on his mother’s side.
Despite the complicated family structure, nothing in the public record points to conflict between the siblings. If anything, the story here is a blended family that mostly stayed out of tabloid drama, which is rare for a family this famous.
Education and early adulthood
Liam has not shared where he went to college or what he studied, and there is no confirmed public record of his school. What is known is that he grew up playing baseball and football, which suggests a fairly normal childhood despite his father’s fame.
By his mid-twenties he had settled into real estate, a field that rewards people who are organized, good with clients, and comfortable working independently. That career choice tracks with everything else about him: steady, private, and unrelated to the entertainment business his father built a career in.
Career: why he chose real estate over Hollywood
Most kids of famous actors get at least one shot at acting, even a small cameo. Liam appears to have skipped that entirely. He works as a real estate agent, reportedly with a firm in North Palm Beach County, Florida.
Real estate is a logical choice for someone who wants financial independence without needing a public profile. Success in the industry comes from local relationships and repeat clients, not headlines. A few reasons this path fits him:
- It does not require any media exposure to succeed.
- It lets him build income that is separate from his father’s earnings.
- Florida’s real estate market has stayed active through 2025 and into 2026, giving agents steady opportunity.
- It keeps his work life completely separate from the Costner name recognition.
There is no public information about which specific properties he has sold or what his client list looks like, and that is consistent with how he handles every other part of his life.
Net worth: what is actually known
This is the part where a lot of articles guess. Here is what can honestly be said: Liam Costner’s exact net worth has never been confirmed by him, his family, or any financial disclosure. Some sites estimate figures in the millions, based on assumptions about trust funds and his father’s wealth, but these are estimates, not verified numbers.
What is confirmed is that Kevin Costner set up financial support for Liam after the paternity test in the 1990s, and that Liam has built his own income through real estate since then. Beyond that, treat any specific dollar figure you see online as a guess dressed up as a fact.
Personal life and why he avoids the spotlight
Liam Costner does not appear to run any public social media accounts under his name, which is unusual for someone born in 1996. Most people his age have at least one public profile. His choice to stay off the grid seems deliberate rather than accidental.
He has not been linked publicly to a wife or a long-term partner, and there is no confirmed information about children. Some of this reserved approach to fame overlaps with broader questions about how children of celebrities handle growing up with a famous parent, a topic that has its own body of research in celebrity culture studies.
What makes Liam different from many celebrity kids is that his privacy has held up over nearly three decades. There was no viral moment, no leaked interview, no unexpected reveal. He simply chose not to participate in that side of fame from the start, and it stuck.
Final thoughts
Liam Costner is proof that you can grow up with a famous last name and still build a life that looks nothing like a tabloid headline. He picked a steady career, kept his relationships private, and let his work speak for itself instead of his father’s résumé. There is something almost refreshing about a celebrity kid whose biggest news story is that there is no news story. If you came here expecting scandal or drama, the real answer is simpler: he just wanted a normal life, and by most accounts, he got one.
FAQ
Who are Liam Costner’s parents?
His father is actor and director Kevin Costner. His mother is Bridget Rooney, who comes from the family connected to the Pittsburgh Steelers. They were never married and their relationship ended before Liam was born.
How old is Liam Costner in 2026?
He was born on November 15, 1996, which makes him 29 years old for most of 2026, turning 30 in November.
What does Liam Costner do for a living?
He works as a real estate agent, reportedly based in North Palm Beach County, Florida. He has not pursued acting or any career in entertainment.
Does Liam Costner have siblings?
Yes. He has six half-siblings from his father’s other relationships: Annie, Lily, and Joe from Kevin’s marriage to Cindy Silva, and Cayden, Hayes, and Grace from his marriage to Christine Baumgartner. He also has a younger half-sister, Kaitlin Koch, on his mother’s side.
Why is Liam Costner not on social media?
There is no confirmed public account under his name. It appears to be a deliberate choice to stay private, consistent with how he has avoided media attention his entire life.
What is Liam Costner’s net worth?
There is no verified figure. Some sites estimate it in the millions based on his father’s wealth and his own real estate career, but Liam has never confirmed a specific number.
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