Thomas Boone Quaid is the son of Hollywood actor Dennis Quaid and Kimberly Buffington and the twin brother of Zoe Grace Quaid. Born in 2007, he has grown up largely outside the entertainment spotlight, despite being part of a well-known Hollywood 88IBET. His early life attracted considerable public attention because he and Zoe survived a serious medication error shortly after their birth. The experience later influenced their father’s work advocating for greater awareness of medical mistakes.

As of 2026, Thomas is 18 years old and has entered an important new stage of his life. He graduated from high school in June 2026 and has since started college at the University of Colorado Boulder, where he is studying business, according to recent reporting from Đá Gà 88IBET.

Thomas Boone Quaid Quick Facts

Who Is Thomas Boone Quaid?

Thomas Boone Quaid is best known as one of Dennis Quaid’s three children. He is the younger actor’s son with his third wife, Kimberly Buffington, and was born alongside his twin sister, Zoe Grace Quaid, in November 2007.

Unlike his older half-brother Jack Quaid, Thomas has not established a public career in acting or entertainment. His life has remained relatively private, with most public information about him coming through occasional comments and family updates shared by his father or reputable entertainment publications.

That privacy has made his name especially searchable when new information about the Quaid family emerges. Interest in Thomas generally centers on his family background, his childhood medical emergency, his relationship with Dennis Quaid, and his transition into adulthood.

How Old Is Thomas Boone Quaid?

Thomas Boone Quaid is 18 years old in 2026. He was born on November 8, 2007, meaning he turned 18 in November 2025. PEOPLE identifies Thomas and Zoe as 18-year-old twins in its 2026 coverage of their transition from high school to college.

His 18th year has marked a significant change because he has completed high school and moved on to university. Recent reporting places him firmly in this new phase of education and independent adulthood.

Where Was Thomas Boone Quaid Born?

Thomas Boone Quaid was born in Santa Monica, California, on November 8, 2007. According to PEOPLE, he was born first at 8:26 a.m. and weighed 6 pounds, 12 ounces. His twin sister Zoe arrived two minutes later.

The twins were born via a gestational carrier to Dennis Quaid and Kimberly Buffington. Their arrival brought considerable attention because Dennis was already an established Hollywood actor and had an older son, Jack Quaid, from his previous marriage to Meg Ryan.

Thomas Boone Quaid’s Parents and Family

Thomas’s father is actor Dennis Quaid, whose career includes major film and television roles spanning several decades. His mother is Kimberly Buffington, a Texas real estate professional who was married to Quaid from 2004 until their divorce was finalized in 2018.

Thomas has one twin sister, Zoe Grace Quaid. He also has an older half-brother, Jack Quaid, who is the son of Dennis Quaid and actress Meg Ryan. Jack later became an actor himself, appearing in projects including The Hunger Games, Vinyl, and The Boys.

The difference between the siblings’ public profiles is notable. Jack pursued acting and became a recognizable entertainment figure in his own right, while Thomas and Zoe have generally lived away from the center of Hollywood publicity. PEOPLE has described Dennis as a proud father of all three children.

Thomas Boone and Twin Sister Zoe Grace Quaid

Thomas and Zoe Grace Quaid were born on the same day and grew up together as Dennis Quaid’s youngest children. Their lives received unusual attention because of a serious medical emergency that occurred when they were newborns.

The twins reached another major milestone in 2026 when they finished high school. Thomas graduated on June 3 at a ceremony in Los Angeles, while Zoe graduated in May. Dennis and Kimberly were both present for Thomas’s graduation, where the former couple came together to celebrate their son’s achievement.

Their next steps have taken them to different universities. Thomas began studying business at the University of Colorado Boulder, while Zoe headed to the University of Virginia. PEOPLE reported in August 2026 that both twins had started college.

What Happened to Thomas Boone Quaid After His Birth?

One of the most significant events associated with Thomas Boone Quaid’s early life was a serious medication error at Cedars-Sinai Medical Center in Los Angeles.

When Thomas and Zoe were about 11 days old, they were hospitalized because of staph infections. During their treatment, the twins accidentally received approximately 1,000 times the recommended dose of the blood thinner heparin. The incident placed both newborns in immediate danger.

The Los Angeles Times reported that the parents did not learn about the medication error until the following morning. The episode became highly publicized because of the twins’ father and because of the broader patient-safety questions it raised.

Fortunately, Thomas and Zoe recovered. PEOPLE reported that both children were discharged from the hospital by early December 2007 after making a full recovery.

How the Medical Incident Changed the Quaid Family

The experience had a lasting effect on Dennis Quaid and Kimberly Buffington. Following the medical emergency, they became outspoken about patient safety and preventable medical errors.

Dennis and Kimberly established The Quaid Foundation to raise awareness about medical mistakes in hospitals. Dennis later continued speaking publicly about medication safety and patient advocacy, including appearances connected with efforts to reduce serious medical errors.

The story is therefore an important part of Thomas Boone Quaid’s public biography, but it is important to distinguish Thomas himself from the advocacy work that followed. He was an infant when the incident occurred; the public advocacy was led by his parents, particularly Dennis Quaid.

The National Press Club later documented Dennis Quaid’s efforts to promote awareness of potentially deadly medical errors and his work connected with medication-safety initiatives.

Thomas Boone Quaid’s Education

Thomas Boone Quaid completed high school in 2026 and moved directly into university education. According to PEOPLE, he is studying business at the University of Colorado Boulder.

His educational path differs from that of his older half-brother. Jack Quaid attended New York University’s Tisch School of the Arts and pursued acting, eventually entering Hollywood as a professional performer. Thomas, by contrast, has chosen a business-focused university path based on the latest publicly reported information.

Because Thomas has kept most of his personal life private, detailed information about his high school, academic interests, grades, extracurricular activities, and specific business specialization has not been widely documented by major sources.

Does Thomas Boone Quaid Have an Acting Career?

There is no reliable public evidence that Thomas Boone Quaid has established a professional acting career.

His older half-brother Jack Quaid followed Dennis Quaid and Meg Ryan into the entertainment industry, but Thomas has not publicly followed the same path. Recent coverage instead identifies his focus as education, particularly his business studies at the University of Colorado Boulder.

It is therefore inaccurate to describe Thomas as an actor simply because he is Dennis Quaid’s son. His public identity is currently much more closely associated with his family and education than with film or television work.

What Does Thomas Boone Quaid Do Now?

As of August 2026, Thomas Boone Quaid is a college student studying business at the University of Colorado Boulder. PEOPLE reported that Dennis Quaid recently dropped his 18-year-old twins off at college, marking a major transition for the family.

Thomas’s current life appears to be centered on education rather than entertainment. He has only recently completed high school, so there is limited reliable public information about his long-term professional plans.

For that reason, claims about a specific future career should be treated cautiously unless Thomas or a reputable source confirms them.

Thomas Boone Quaid’s Relationship With Dennis Quaid

Thomas has a close family connection with Dennis Quaid, who has repeatedly spoken positively about his children. In recent interviews, Dennis has described his role as a father as one of the most meaningful parts of his life.

The actor attended Thomas’s June 2026 high school graduation, along with his current wife, Laura Savoie. Kimberly Buffington was also there, making the ceremony a family gathering despite Dennis and Kimberly having divorced years earlier.

In August 2026, Dennis also discussed sending the twins to college and described them as beginning their independent lives. His comments demonstrate that Thomas remains an important part of his father’s public family story, even though Thomas himself generally stays out of the spotlight.

Thomas Boone Quaid’s Relationship With His Siblings

Thomas is especially closely associated with his twin sister, Zoe Grace Quaid, with whom he shares the same birthday and parents. Both have recently moved from high school into university life, although they are attending different schools.

His older half-brother Jack Quaid has followed a completely different professional route. Jack established a career as an actor and became known for roles in The Hunger Games, The Boys, and other productions.

This gives Thomas a distinctive place within the Quaid family: he is part of a highly visible entertainment family without currently being an entertainment professional himself.

Thomas Boone Quaid Net Worth

Thomas Boone Quaid’s exact net worth has not been publicly confirmed.

There are no reliable financial records showing that he has accumulated an independent personal fortune or established a professional income comparable to that of his father. Since he is only 18 and has recently started university, published claims assigning him a specific net worth would be speculative.

His father, Dennis Quaid, has had a long and successful entertainment career, but that should not be confused with Thomas’s own finances.

Why Is Thomas Boone Quaid Famous?

Thomas Boone Quaid is primarily known because he is the son of Dennis Quaid, the twin brother of Zoe Grace Quaid, and part of the Quaid family’s well-known Hollywood history.

His name also became widely known because of the serious heparin medication error he and Zoe experienced as newborns. The incident received extensive media coverage and later contributed to Dennis and Kimberly Quaid’s efforts to promote awareness of medical errors and patient safety.

Today, public interest has expanded beyond the events of his infancy. His high school graduation and move to the University of Colorado Boulder have made his transition into adulthood a new point of interest for entertainment readers.

FAQs

Who is Thomas Boone Quaid?

Thomas Boone Quaid is the son of actor Dennis Quaid and Kimberly Buffington. He was born in 2007 and has a twin sister, Zoe Grace Quaid. He is also the younger half-brother of actor Jack Quaid, Dennis Quaid’s son with Meg Ryan.

How old is Thomas Boone Quaid?

Thomas Boone Quaid is 18 years old in 2026. He was born on November 8, 2007, in Santa Monica, California. He turned 18 in November 2025 and graduated from high school in June 2026.

When was Thomas Boone Quaid born?

Thomas Boone Quaid was born on November 8, 2007. PEOPLE reports that he was born at 8:26 a.m. in Santa Monica, California, and that his twin sister Zoe was born two minutes later.

Who are Thomas Boone Quaid’s parents?

Thomas’s parents are Dennis Quaid and Kimberly Buffington. Dennis is a longtime Hollywood actor, while Kimberly was previously married to Quaid and is associated with real estate in Texas. The couple divorced in 2018.

Does Thomas Boone Quaid have a twin sister?

Yes. Thomas Boone Quaid’s twin sister is Zoe Grace Quaid. Both were born on November 8, 2007, via gestational carrier and are the youngest children of Dennis Quaid.

Does Thomas Boone Quaid have an older brother?

Yes. Thomas has an older half-brother, Jack Henry Quaid, who is Dennis Quaid’s son with actress Meg Ryan. Jack has built a professional acting career with credits including The Hunger Games and The Boys.

What happened to Thomas Boone Quaid as a baby?

Thomas and his twin sister were hospitalized shortly after birth because of staph infections and accidentally received about 1,000 times the recommended dose of the blood thinner heparin. Both survived the life-threatening medication error and later made a full recovery.

Where does Thomas Boone Quaid go to college?

Thomas Boone Quaid is attending the University of Colorado Boulder. PEOPLE reported in August 2026 that he and his twin sister had started college, with Thomas studying business at Colorado Boulder and Zoe attending the University of Virginia.

Does Thomas Boone Quaid act in movies or television?

There is no reliable public record of Thomas Boone Quaid having a professional acting career. Unlike his older half-brother Jack, Thomas has remained largely outside the entertainment industry and is currently focused on his university education.

What is Thomas Boone Quaid doing now?

As of 2026, Thomas is a college student at the University of Colorado Boulder studying business. He graduated from high school in June 2026 and has recently started university, marking a new stage of independence.

Conclusion

Thomas Boone Quaid is the son of Dennis Quaid and Kimberly Buffington, the twin brother of Zoe Grace Quaid, and the younger half-brother of actor Jack Quaid. His early life became widely known because of the serious medical error he and Zoe survived as newborns, an experience that influenced their parents’ patient-safety advocacy.

In 2026, Thomas has entered a new chapter. After graduating from high school, he began studying business at the University of Colorado Boulder. While much of his life remains private, his family background and transition into adulthood continue to make Thomas Boone Quaid a subject of public interest.