Liam Costner is the son of Kevin Costner, one of the most distinguished actors and film directors. Since his debut in the entertainment industry in 1974, his father Kevin has worked in a handful of big hit movies. He also won two Academy Awards and one Primetime Emmy Award as well.
While you might be quite familiar with his dad, there are lots of fans who still want to know about Liam Costner’s mother.
Well, today we will take a look at his relationship with his parents and siblings and find out who is his biological mother. Here is what you need to know about Kevin Costner’s son Liam!
Who are Liam Costner’s Parents?
As we have mentioned earlier that Liam is the son of Award-winning actor Kevin and his ex-wife Bridget Rooney. His dad Kevin is one of the most successful entertainers with dozens of movies and TV credits. Most notably, the renowned actor worked in The Untouchables and No Way Out.
Liam Costner Mother
Liam’s mom Bridget Rooney comes from a big-shot family. Born in 1962, Bridget is a Pittsburgh Steelers heiress. Her grandfather Art Rooney was the owner of the Pittsburgh Steelers football franchise. She is the niece of Dan Rooney.

His Date of Birth and Early Life
Liam was born in November 1996, in the United States of America. His age is 25 as of 2022 and will celebrate his 26th birthday on coming 15th November. Unfortunately, the details about his college and other early details are still out of the media.
Besides, Kevin Costner’s son belongs to the Caucasian ethnicity and is an American as per his nationality.
Did His Parents Ever Get Married?
Talking about his parents’ relationship, they began dating after Kevin’s divorce from his first wife Cindy Silva in 1994. The former couple always kept things very private. They never made a single public appearance together.
Tabloids reported that the couple dated for seven months before they went their separate ways. But, talking about their marriage rumors, neither Kevin nor Bridget confirmed if they were ever in a marital relationship or not.
Apparently, some sources say that the former Liam Costner’s parents never married.
Liam’s Relationship With His Father Kevin Costner
The actor reportedly demanded a paternity test when Bridget was pregnant with Liam. After the report came back positive, Kevin finally acknowledged Liam. Later on, Kevin also founded a sizable trust fund for his son.
An insider told People, the actor visits his son, “occasionally but not on a regular basis.”
Kavin shares a deep bond with his six-other children. He told Good Housekeeping in 2007,
“All of my kids are showered with love.”
Liam Costner Has Six Half Siblings
Liam has three older half-siblings from his father Kevin’s first marriage with Cindy Silva. The couple began dating in 1975 and exchanged their vows after three years of their romance in 1978.
They welcomed their first child, a daughter Annie Costner, a film producer, on 15th April 1984. She is the founder of Sound Off Films, a boutique production company. Annie is now in a wonderful marital relationship with her spouse Dr. Danny Cox.
Their second daughter Lily Costner was born on 4th August 1986, in Los Angeles. She is an actress by profession who worked on projects like The Postman (1997) and Black or White (2014) as well.
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Cindy gave birth to their third child, a son, Joe Costner on 31st Jan 1988. He has been following in his father’s footsteps.
Kevin’s relationship with his wife ended in divorce after 16-year of marriage in 1994.

Source: Getty Images
Liam’s three younger step-siblings came from his dad’s second marriage with Christine Baumgartner, a model and handbag designer. The couple dated for four years before walking down the aisle on 25th September 2004.
They have three kids, two sons Cayden Wyatt Costner, born in 2007, and Hayes Logan Costner, born in Feb 2009. They welcomed their daughter, Grace Avery Costner, on 2nd June 2010.
While Kevin frequently appears with his kids on various occasions, the actor is rarely spotted with his estranged son, Liam.
His Mother Bridget Married Billionaire Bill Koch
Bridget, after her split from her ex-hubby Kevin, tied the knot with Bill Koch in 2005. Their wedding ceremony held in Colorado. Although Rooney is around 22-years younger than her hubby, they are leading a blissful matrimonial relationship since their marriage.
Bill is a successful businessman. His estimated net worth is $1.6 billion in 2022 and the figure was $1.8 billion as of 2018.
Is Liam Costner an actor?
If you belong to a renowned family in the Hollywood industry then fame came naturally whether you enjoy it or not. Till now, the star kid Liam has been able to keep every detail of his life behind closed doors.
Being the son of such a greatest actor, it is obvious that many people wonder to know if Liam is following in his father’s footsteps. In fact, due to the unavailability of proper details, we can’t say if Costner is an actor like his father or not. Apparently, sources say the star kid isn’t pretty into acting.
Who is Liam Costner’s Girlfriend?
As we have mentioned above Liam is a too private person. He also remains hush-hush on revealing his private life. He isn’t dating anyone “officially” at present.
Furthermore, talking about his social media presence, Costner doesn’t have any official social media accounts.
Net Worth: His Father is a Multi-Millionaire
Liam’s net worth is still under review. But, on the other side, his dad Kevin has an estimated fortune of $250 million. He has racked such a hefty net worth from his multiple professions.
The actor started his acting career with a role in the movie Sizzle Beach, U.S.A. in 1981. He gradually became a part of a number of mega-hit films such as No Way Out, Field of Dreams, and more.
His breakout performance in the highly acclaimed movie, Dances with Wolves (1990) won him two Academy Awards. Kevin is also the recipient of two Golden Globe Awards and two Screen Actors Guild Awards.