Meet Liam Costner: Real Estate Agent and Celebrity Son of Kevin Costner 

Liam Costner is the celebrity son of award-winning actor Kevin Costner and actress Bridget Rooney.

Although his parent’s status contributed to his fame, Liam has made a path for himself as a successful real estate agent away from his parents’ identity.

So, if you’re curious to find out more about Kevin Costner’s son, this article will provide answers to all the questions you might have.

From details about his early life, career, net worth, family, and age, to what he’s up to now, you’ll find out all you need to know about this real estate expert.

Liam Costner’s Biography 

Liam Timothy Costner was born on the 15th of November, 1996, into a family of great affluence and influence.

He is the son of legendary American actor and producer, Kevin Costner, and stepson of American businessman, Bill Koch.

His father Kevin Costner briefly dated his mother, Bridget Rooney, and they separated before he was born. They never got married.

After his parents’ separation, his mother got married to American businessman, William Koch in 2005.

Although Liam was born into fame and wealth, he has largely lived a quiet life. His biological father had first doubted his paternity, but after the doubts were cleared, he made efforts to be a part of his life by setting up a trust fund for him.

Also, he paid visits to him, although not frequently. Liam had grown up with his mother and stepfather, who had a significant impact on his life.

Furthermore, he chose a career for himself in real estate, away from the entertainment world his parents and most of his siblings are thriving in.

He has six half-siblings from his father’s side, whom he shares a good relationship with.

ALSO READ: Meet Zulekha Haywood: Daughter of Celebrity Supermodel Who Overcame Her Weight Insecurities 

What Does Liam Costner Do?

Liam Costner works as a real estate agent. He reportedly works as a realtor for Frankel Bell Group. The young realtor hasn’t shared substantial details about his career. 

What Is Liam Costner’s Net Worth?

There’s no official information available on the net worth of Liam Costner. However, some reports claimed that he recently inherited a part of his stepfather’s wealth.

Meet Liam Costner’s Family 

Kevin Costner and Christine Baumgartner with their kids

Liam Costner comes from a large family. He’s the only child of his parents, Kevin Costner and Bridget Rooney. However, he has six half-siblings from his father’s marriages and one from his mother and stepfather William Koch.

Also, he has four step-siblings from his stepfather’s previous relationships.

Kevin Costner and Bridget Rooney were never married. However, they had a brief relationship which led to the birth of their son in 1996.

Kevin Costner is an American actor and producer.  He was born on January 18, 1955.

He’s one of the well-known and widely acclaimed Hollywood actors, with numerous awards to his name. He started his career around the early eighties, and since then has directed, produced, and starred in numerous movies, 

His first marriage to Cindy Silvia resulted in three children, Annie, Lily, and Joseph.

After the divorce in 1994, he reportedly had a relationship with Bridget Rooney, which resulted in Liam in 1996. However, some sources claim he started a relationship with her while still married to his first wife.

Also, Kevin had doubted Liam’s paternity. It was after Bridget Rooney requested a paternity test, which proved Liam was his, that he set up a trust fund in his son’s name.

In 2004, Kevin got married to Christine Baumgartner and they gave birth to three children, Cayden, Hayes, and Grace, before their divorce on February 20, 2024.

Liam’s older half-siblings are also part of the entertainment industry. Annie started with acting and is now a producer, Lily is an actress and a singer, while Joseph has also starred in several movies. 

ALSO READ: Meet Mary Lee Harvey: Ex-wife of Steve Harvey, Who Got a Lot of Media Attention After Their Divorce 

Bridget Rooney 

Bridget Rooney and William Koch

Bridget Rooney, Liam’s mother has also dabbled in the entertainment industry. She’s an actress, although not quite popular, known for her role in the short film, Zombie or Not Zombie.

Born on April 26, 1962, into a wealthy family, Bridget continued into the line of wealth after her marriage to a wealthy businessman, William Koch.

Her family has a strong background in sports, with her grandfather, Arthur Joseph Rooney, being the original owner of the Pittsburgh Steelers, a football club in the NFL (National Football League).

In addition, Bridget is a socialite and has made several appearances in high-profile gatherings. She’s also involved in charity work.

In 2005 she married William Koch and they have one daughter together, Kaitlin Koch. 

William ‘Bill’ Ingraham Koch, stepfather to Liam Costner, is an American businessman. He’s a billionaire, with an estimated net worth of $2 billion as of 2024.

He’s also a sailor and collector. His boat had won the America’s Cup in 1992. He was born on May 3rd, 1940, to Fred C. Koch, founder of Koch Industries, one of the largest companies in the USA, and Mary Robinson.

William had played a significant role in the upbringing of his stepson, Liam Costner.

Liam Costner’s Age 

Liam Costner, born on the 15th of November, 1996, is 27 years old.

Where’s Liam Costner Now?

Liam Costner

Liam lives a quiet life away from the media’s attention. He’s focused on his career as a real estate agent.


Liam Costner is the son of award-winning American actor, Kevin Costner, and the stepson of an American billionaire, William Koch.

His mother is the granddaughter of Arthur Joseph Rooney, the original owner of the Pittsburgh Steelers. 

Despite being born into affluence, he lives a quiet life and is focused on his career as a realtor. 

The 27-year-old has six half-siblings from his father.

ALSO READ: Meet Martyn Eaden: Copywriter and Screenwriter, and Ex-husband to Chrissy Metz

Marymartin Okoabu
Marymartin Okoabu

Chinonso Marymartin Okoabu is a creative writer who focuses on SEO contents and fictions. With more than two years experience in SEO writing, she writes articles for websites. In her spare time, she crafts short stories that explore life experiences. Her creative works have been published on different websites and Love Feast Magazine. She is the winner of the E C. Michael's prize for short stories, 2022.

Chinonso is a graduate of Human Anatomy from the University of Calabar.
She hails from Ibusa in Oshimili North local government area of Delta state.

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