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Meet Liam Costner: Kevin Costner’s Son and His Relationship with Billionaire Bill Koch



Meet Liam Costner: Kevin Costner's Son and His Relationship with Billionaire Bill Koch

Liam Costner is a real estate agent from the United States who has recently gained attention. He is best known as the son of the award-winning actor, producer, and director Kevin Costner. His mother is Bridget Rooney, an actress.

Kevin Costner and Bridget Rooney met in the mid-1990s and quickly fell in love. However, they kept their relationship secret from the media. They separated a few years after Liam was born. Want to learn more about Liam Costner? Keep reading.

In this article, we will discuss Liam Costner’s life, including his career journey, personal life, and biography. We will also explore his net worth and more details about his background. Let’s dive in!

Liam Costner Quick Bio

Full Name Liam Timothy Costner
Date of Birth November 15, 1996
Age 27 years old (as of February 2024)
Place of Birth Los Angeles, California, USA
Nationality American
Ethnicity Caucasian
Zodiac Sign Scorpio
Profession Real Estate Agent
Parents Kevin Costner and Bridget Rooney
Stepfather Bill Koch
Half-Siblings Annie, Lily, Joseph, Cayden, Wyatt, Hayes, Grace, Kaitlin K. Koch
Height 5 feet 8 inches (173 cm)
Weight 137 pounds (62 kg)
Eye Color Blue
Net Worth $800 Million

Who is Liam Costner?

Liam Costner is an American real estate agent born on November 15, 1996, in Los Angeles, California. As of February 2024, he is 27 years old. His zodiac sign is Scorpio. Liam is a white American citizen. He is best known as the son of Kevin Costner, a famous actor, and Bridget Rooney, an actress.

His father, Kevin, is a famous Hollywood actor, producer, and director. Moreover, He has won several achievement awards, including two Academy Awards, three Golden Globe Awards, and one Emmy Award. Kevin started his acting career in 1981 and became a legendary figure in the entertainment industry.

Liam’s mother, Bridget Rooney, is also an actress best known for her role in the short film Zombie or Not Zombie. Kevin and Bridget had a strong bond and dated for almost three years, but they never got married. Their relationship was secret from the media. However, they separated just after Liam Costner was born.

Kevin and Bridget Rooney’s Secret Relationship

Kevin and Bridget Rooney's Secret Relationship

Kevin Costner and Bridget Rooney met in 1990 and fell in love while working together at a TV station in Aspen. They kept their relationship a secret and did not appear in public together.

Despite their efforts to stay private, their relationship quickly made headlines in 1996. They came to the media when Bridget announced her pregnancy, and Kevin immediately divorced his first wife, Cindy.

This divorce was one of the most expensive in Hollywood history, as it resulted in a settlement of 80 million dollars. 

Separation and Paternity Test Request

After Kevin Costner and Bridget Rooney separated, Kevin requested Bridget to take a paternity test to confirm that Liam was his son. The test showed that Liam Costner was indeed Kevin’s son. After this, Kevin decided to set up a large trust fund for Liam.

At the same time, Bridget was very confident that Liam Costner was Kevin Costner’s son. His mother Bridget’s life changed dramatically after her paternity dispute.

Liam Costner Siblings

Liam Costner, a well-known American real estate agent, has seven half-siblings. Three of them are from his father’s first marriage to Cindy Silva. Liam’s older half-siblings are Annie, Lily, and Joseph.

From his father’s second marriage to Christine Baumgartner, he has four younger half-siblings: Cayden Wyatt, Hayes Logan, and Grace Avery.

Liam’s older siblings are also involved in the entertainment industry. Annie is a film producer, Lily is an actress, and Joe is an actor. Additionally, from his mother’s marriage to American billionaire Bill Koch, Liam has a sister named Kaitlin K. Koch.

Liam’s Relationship with Bill Koch

Bill Koch is Liam Costner’s stepfather. Bill married Liam’s mother, Bridget Rooney, in 2005. He is a billionaire and a well-known businessman. He is the president of the Oxbow Group, a company that works in energy development. Liam Costner and Bill Koch have a strong bond and get along well.

Liam Costner Education

Liam Costner completed his primary education at a nearby public school. After graduating high school, he attended college and later enrolled in a university to earn a degree. However, he was quite a good student during his student life. Yet, he didn’t give details about his studies and the subjects he selected.

Liam Costner’s Career

Liam Costner comes from a family of Hollywood legends but chose a different path from his father, Kevin Costner. Instead of entering the entertainment industry, Liam pursued a career in real estate. He started his career as a member of Frankel Bell Group and later specialized in modern real estate in Palm Beach County.

Liam Costner always keeps himself involved in real estate dealings and skillfully dedicates his time to learning to bridge the gap between buyers and sellers. His role in successfully making the deals was competitively very high, and he was committed to the industry. Unlike his father, Liam prefers to stay out of the limelight.

In addition to his real estate career, Liam briefly appeared in Hollywood. He was involved in the highly acclaimed TV series Yellowstone. This series was regularly known as a highly regarded television show.

Is Liam Costner Married?

Liam Costner

According to the report, Liam Costner is still unmarried. He is only 26 years old and has not been involved in any relationship. He is focusing on his professional and personal development. Liam Costner is quite a pleasant person who always wants to have a traveling life. He is quite an introvert and always wants to spend time alone. Despite having a famous family background, he is different from everyone.

Liam Costner’s Net Worth

Liam Costner is financially firm due to his achievements and solid background. According to the estimate of 2024, his net worth is estimated to be $800 million. Liam Costner’s real estate business has largely contributed to his net worth. He also has a sizable legacy of over $250 million, as his father, Kevin Costner, is very rich.

Liam’s Physical Appearance

Liam Costner is 5 feet 8 inches tall, which is about 173 cm. This height attracts people and gives his personality a new look. Moreover, his weight is 137 pounds, approximately 62 kilograms. Thus, we could say that he always keeps his body in equilibrium and maintains it. Liam Costner’s eyes are pure blue. He also has blonde hair that gives him his charismatic, ageless look.

Final Thoughts

Liam Costner is the son of Bridget Rooney and Kevin Costner. He was the result of their secret romance of 1990. At first, Kevin Costner was not open to accepting Liam Costner. Still, later, with a paternity test, Kevin Costner accepted Liam Costner wholeheartedly and provided Liam Costner with everything. 


Is Bridget Rooney still married to Bill Koch?

Yes, Bridget Rooney is still married to Bill Koch. They got married in 2005 and have maintained a strong relationship since then.

Who is Kevin Costner currently married to?

Kevin Costner is currently married to Christine Baumgartner. They got married in 2004 and have three children together.

How old is Liam Costner?

As of February 2024, Liam Costner is 27 years old. He was born on November 15, 1996.