Bridget Rooney is an American philanthropist and member of the well-known Rooney family. She is the granddaughter of Pittsburgh Steelers founder Art Rooney Sr. Bridget is also known as the wife of billionaire businessman Bill Koch and the former partner of actor Kevin Costner. She and Costner have a son, Liam Costner, while she and Koch have a daughter, Kaitlin Koch.
Quick Facts
| Detail | Information |
|---|---|
| Full name | Bridget Mary Rooney |
| Also known as | Bridget Rooney Koch, Bridget Koch |
| Born | May 1962 |
| Age | 64 as of 2026 |
| Birthplace | California, United States |
| Nationality | American |
| Parents | Timothy James Rooney and June Marraccaini |
| Grandfather | Art Rooney Sr. |
| Siblings | Five reported |
| Education | Business Administration degree reported |
| Profession | Philanthropist, former actress |
| Husband | Bill Koch |
| Married | 2005 |
| Former partner | Kevin Costner |
| Children | Liam Costner and Kaitlin Koch |
| Known acting credit | Zombie or Not Zombie |
| Residence | Palm Beach, Florida |
| Net worth | Not reliably known |
Bridget Rooney’s Early Life and Family
Bridget Mary Rooney was born in California in May 1962. Sources disagree about her exact birthday. Some give May 26, 1962, while another gives May 22, 1962. Her birth year is more consistently reported.
Her parents are Timothy James Rooney and June Marraccaini Rooney. Her father, also known as Tim Rooney, was involved with businesses including Yonkers Raceway and the Palm Beach Kennel Club.
Bridget reportedly grew up with five siblings. Sources name Thomas Joseph Rooney, Timothy James Rooney Jr., Kathleen, Cara Rooney, and Margaret. Some surnames differ between reports, possibly because of marriage.
Her Connection to the Pittsburgh Steelers
Bridget comes from the Rooney family, which has a long connection to American football.
Her grandfather was Arthur Joseph “Art” Rooney Sr., founder of the Pittsburgh Steelers. Art Rooney brought the franchise, originally known as the Pittsburgh Pirates, into the NFL in 1933.
The Rooney family also became connected with the Palm Beach Kennel Club, which Art Rooney Sr. purchased in 1969.
Bridget’s extended family includes several well-known figures. Her uncle Dan Rooney played an important role in running the Pittsburgh Steelers.
Actresses Kate Mara and Rooney Mara are Bridget’s nieces. This gives her family strong connections to both professional sports and Hollywood.
Bridget Rooney’s Education
Bridget reportedly completed high school in the United States before attending college.
Several secondary sources say she earned a bachelor’s degree in Business Administration. However, the university she attended and her graduation year have not been reliably identified.
Her Work Before Becoming Well Known
One source reports that Bridget worked at a television station in Aspen, Colorado, around the period when she became involved with Kevin Costner.
The name of the station and her exact position are not publicly established.
Bridget later had a small connection to acting. She appeared as Tess in the short horror film Zombie or Not Zombie in 2011.
It remains her main known acting credit, and there is no evidence that she developed a long-term professional acting career.
Bridget Rooney and Kevin Costner
Bridget received significant media attention because of her relationship with actor Kevin Costner.
Their relationship reportedly began around 1995, following Costner’s divorce from his first wife, Cindy Silva. Another source places their public relationship in 1996.
The relationship was relatively brief but resulted in the birth of a son.
Liam Costner and the Paternity Reports
Bridget gave birth to Liam Costner on November 15, 1996.
Reports from secondary sources say Kevin Costner initially questioned or did not immediately acknowledge Liam’s paternity. A paternity test was reportedly completed and confirmed that Costner was Liam’s father.
Costner then reportedly accepted paternity and created a trust for his son.
Reports also say Costner spent some time with Liam while he was growing up, although reliable details about their relationship remain limited.
Liam has generally stayed outside Hollywood. He has been reported to work in real estate. One source also describes him as a strong athlete during his school years.
Who Is Kevin Costner?
Kevin Costner is an American actor, director, producer, and musician. He became one of Hollywood’s best-known actors through films such as Dances with Wolves, The Bodyguard, Field of Dreams, and Robin Hood: Prince of Thieves.
Dances with Wolves earned Costner Academy Awards for Best Picture and Best Director.
Before Liam was born, Costner had three children with his first wife, Cindy Silva. He later had three more children with Christine Baumgartner.
Liam is one of Costner’s seven children.
Bridget and Costner did not marry, and their relationship ended after their time together in the 1990s.
Bridget Rooney’s Marriage to Bill Koch

Bridget later began a relationship with businessman William Ingraham “Bill” Koch.
They married in 2005. One source reports that their wedding took place in Colorado.
The couple later made Palm Beach, Florida, an important base for their family and charitable activities.
Bridget and Bill have continued to appear together at charity events, social gatherings, and other public functions.
Bridget and Bill Koch’s Daughter
Bridget and Bill have one daughter together:
Kaitlin Koch, also known as K.K. Koch.
She was reportedly born in 2006. Her exact date of birth is not provided in the available information.
Bridget therefore has two biological children: Liam Costner with Kevin Costner and Kaitlin Koch with Bill Koch.
Bridget Rooney’s Stepchildren
Bridget also became a stepmother to Bill Koch’s children from previous relationships.
They are reported as:
- Wyatt Koch
- Charlotte Koch
- William Koch
- Robin Koch
Bill has publicly discussed creating trusts and financial plans for his children while encouraging them to build careers and support themselves.
Oxbridge Academy
Education has become an important part of Bridget and Bill’s work in Palm Beach.
The couple founded Oxbridge Academy in Palm Beach, Florida, in 2011. The private preparatory school was created with an emphasis on project-based and practical learning.
Reports have said that a large portion of Oxbridge students receive financial aid, with significant financial support provided through Bill Koch.
Bridget has publicly supported the school and has described it as one of her husband’s most important accomplishments.
Bridget Rooney’s Philanthropy
Bridget is commonly described as a philanthropist.
She has reportedly supported or worked with organizations including:
- United Way of Allegheny County
- Pittsburgh Cultural Trust
- Carnegie Museum of Art
- Homeless Children’s Education Fund
Secondary sources have also connected her with causes involving education, environmental protection, animal welfare, and social issues.
Her work with Oxbridge Academy is one of the clearest examples of her involvement in education and philanthropy.
Public Appearances
Bridget has made several public appearances, often alongside Bill Koch.
She attended the 22nd Annual ELLE Women in Hollywood Awards in Beverly Hills in October 2015.
In February 2017, Bridget and Bill attended the Boys & Girls Clubs of Palm Beach County Winter Ball at The Breakers in Palm Beach.
She was also photographed at the Rosarian Academy Family Fun Day in West Palm Beach in January 2018.
Other reported appearances include events in New York and East Hampton.
These appearances have mainly been connected with charity, society, culture, and family activities rather than an entertainment career.
Bridget Rooney’s Life in Palm Beach
Bridget has been closely associated with Palm Beach, Florida, for many years.
Reports indicate that she moved to Florida with Liam before or around the period when she built her relationship with Bill Koch.
One source refers to Palm Springs instead, but this appears inconsistent with the wider reporting that places her family in Palm Beach.
Bridget and Bill have also been involved with educational and charitable organizations in the Palm Beach area.
Bridget Rooney’s Net Worth
Bridget Rooney’s personal net worth is not reliably known.
Some celebrity biography websites estimate it at around $2 million, while others claim between $10 million and $20 million. These figures are not supported by clear financial records.
She comes from the wealthy Rooney family and is married to billionaire Bill Koch, but their family wealth should not be presented as Bridget’s personal net worth.
Social Media
No verified public Instagram, Facebook, X, or TikTok account belonging to Bridget has been identified in the available information.
Most of her public visibility comes from event photographs, charity work, family connections, and media coverage.
What Is Bridget Rooney Doing Now?
Bridget continues to be associated with her family life in Palm Beach, Florida.
Her public profile centers more on philanthropy, education, and social events than acting. She remains married to Bill Koch based on the available information.
There is no evidence that she has returned to acting professionally.
Interesting Facts
- Bridget Rooney was born in May 1962 in California.
- Sources disagree on whether her birthday is May 22 or May 26.
- Her parents are Timothy James Rooney and June Marraccaini.
- Her grandfather, Art Rooney Sr., founded the Pittsburgh Steelers.
- Actresses Kate Mara and Rooney Mara are her nieces.
- She reportedly earned a bachelor’s degree in Business Administration.
- She reportedly worked at a television station in Aspen.
- She had a brief relationship with Kevin Costner in the 1990s.
- Their son, Liam Costner, was born on November 15, 1996.
- Liam has reportedly worked in real estate.
- Bridget married billionaire Bill Koch in 2005.
- Bridget and Bill have a daughter named Kaitlin Koch.
- She is also stepmother to four of Bill’s children.
- Bridget and Bill founded Oxbridge Academy in Palm Beach in 2011.
- Her only widely reported acting credit is the 2011 short film Zombie or Not Zombie.
Explore More:
Who Was Brita Ingegerd Olaisson? Meet Gordon Lightfoot’s First Wife

