Thomas Boone Quaid: What Happened to Dennis Quaid’s Son?

Thomas Boone Quaid is the son of famous American actor Dennis Quaid and real estate agent Kimberly Buffington. He was born alongside his twin sister, Zoe Grace Quaid, in California.

Thomas became widely known because of a serious medical incident shortly after his birth. He and Zoe survived an accidental heparin overdose while receiving treatment for infections at a hospital.

This article explores Thomas Boone Quaid’s birth, family background, twin sister, parents, medical emergency, childhood, siblings, custody arrangement, and the life he has lived since surviving the frightening incident.

Quick Bio

Who Is Thomas Boone Quaid?

Thomas Boone Quaid is one of the children of American actor Dennis Quaid. He was born on November 8, 2007, at St. John’s Health Center in Santa Monica, California. His mother is real estate agent Kimberly Buffington. Thomas arrived with his twin sister, Zoe Grace Quaid.

Thomas has mainly grown up outside the entertainment spotlight. Unlike his famous father and older half-brother, he has not built a public acting career. His parents have generally allowed him and his twin sister to experience their childhood away from constant public attention.

His name nevertheless became widely recognized because of what happened shortly after his birth. Thomas and Zoe experienced a frightening medical emergency as newborns. Both survived the incident and recovered, while their experience later encouraged their parents to raise awareness about preventable medical mistakes.

Thomas Boone Quaid’s Early Life

Thomas Boone Quaid and Zoe Grace Quaid were born on November 8, 2007. Their arrival was especially meaningful for Dennis Quaid and Kimberly Buffington because the couple had experienced five consecutive miscarriages before deciding to pursue gestational surrogacy.

The twins were carried by a gestational carrier and delivered after nine months. Thomas was born first, arriving approximately two minutes before Zoe. At birth, Thomas weighed six pounds and twelve ounces, while his sister weighed five pounds and nine ounces.

Their parents were delighted to welcome the twins into their family. However, their happiness soon turned into fear when both babies developed health problems. Less than two weeks after their birth, Thomas and Zoe faced an emergency that became one of the most widely discussed parts of their early lives.

Who Are Thomas Boone Quaid’s Parents?

Thomas Boone Quaid’s parents are Dennis William Quaid and Kimberly Buffington. Dennis is a well-known American actor with a long career in movies. He became recognized for appearances in productions including The Right Stuff and Breaking Away.

Kimberly Buffington was born on October 17, 1971, in Austin, Texas. She works in real estate and has been associated with Buffington Signature Homes. Although connected to a famous actor, Kimberly has maintained a less public lifestyle than her former husband.

Dennis and Kimberly married on July 4, 2004. After struggling with miscarriages, they chose surrogacy and eventually welcomed Thomas and Zoe. Their marriage later ended, but both remained connected through their shared responsibility for raising their twins.

Thomas Boone Quaid’s Twin Sister Zoe Grace Quaid

Zoe Grace Quaid is Thomas Boone Quaid’s twin sister. The siblings share the same birthday and went through the same frightening medical experience shortly after entering the world. Thomas is technically the older twin because he was delivered approximately two minutes before Zoe.

Zoe weighed five pounds and nine ounces when she was born. Like Thomas, she has largely remained away from the entertainment industry and public spotlight. Their parents have kept much of the twins’ everyday lives private as they have grown older.

Thomas and Zoe share an unusual childhood story because they survived the same medical emergency as newborns. Their recovery allowed them to continue growing up together, and later descriptions of their lives presented both twins as healthy children doing well academically and socially.

What Happened to Thomas Boone Quaid as a Baby?

Around ten days after Thomas and Zoe were born, a nurse discovered that the babies had developed staph infections. Their parents took them to Cedars-Sinai Medical Center, where they received medical care, including intravenous antibiotics, for their infections.

Dennis and Kimberly initially remained at the hospital for more than 24 hours. After receiving reassurance about the twins’ condition, they returned home to rest. The situation soon became much more serious when a medication error involving the blood thinner heparin occurred.

The twins were reportedly supposed to receive 10 units of heparin. Instead, they were given doses containing 10,000 units. The amount was dramatically higher than intended and created a potentially life-threatening situation for both newborn babies, leaving their parents deeply concerned about whether they would recover.

Thomas Boone Quaid’s Heparin Overdose

Heparin is a medication used to prevent blood clots. In Thomas and Zoe’s case, the amount they received was reportedly around 1,000 times the intended dose. They were given two excessive doses, creating a dangerous medical emergency when they were only days old.

The medication severely affected their blood’s ability to clot normally. Their condition became extremely frightening for Dennis Quaid and Kimberly Buffington, who were suddenly faced with the possibility of losing their newborn twins shortly after celebrating their arrival.

Fortunately, Thomas and Zoe survived. As the effects of the medication began wearing off over the following days, their conditions improved. The twins eventually recovered from the emergency and were able to continue their lives without the tragic outcome their parents had feared.

How the Incident Changed Thomas Boone Quaid’s Family

The medical incident had a lasting impact on Thomas Boone Quaid’s parents. Dennis described facing such a dangerous situation involving his newborn children as an extremely frightening experience. Their survival also turned the family’s attention toward the broader problem of preventable medication errors.

Following the incident, Thomas and Zoe’s parents pursued legal action related to what happened. They also became involved in efforts intended to improve public understanding of medical errors and patient safety, particularly mistakes involving medications administered in hospitals.

The parents established The Quaid Foundation with the goal of raising awareness and reducing preventable medical mistakes. In this way, the frightening experience Thomas and Zoe survived as infants became connected with a larger effort focused on improving safety for other patients and families.

Thomas Boone Quaid’s Father Dennis Quaid

Dennis William Quaid is Thomas Boone Quaid’s father. He was born into a family that included his mother, Juanita Bonniedale “Nita” Quaid, who worked in real estate, and his father, William Rudy Quaid, who worked as an electrician.

Dennis later became a successful actor. His film career brought him widespread recognition and made the Quaid name familiar to audiences. His professional achievements also meant that Thomas and Zoe were born into a family already accustomed to public attention.

Despite his demanding career, Dennis has spent time with his twins as they have grown. He has spoken positively about their progress and described ordinary experiences such as driving them to school. Thomas therefore experienced a childhood connected to Hollywood but also filled with regular family routines.

Dennis Quaid and Kimberly Buffington’s Relationship

Dennis Quaid and Kimberly Buffington married on July 4, 2004. During their marriage, they experienced significant challenges while trying to have children. After five consecutive miscarriages, they eventually decided that gestational surrogacy offered another path toward expanding their family.

Their decision resulted in the birth of Thomas and Zoe in November 2007. The couple then faced the twins’ medical crisis together only days after their birth. Their experience as parents therefore included both the happiness of welcoming twins and the fear of nearly losing them.

Dennis and Kimberly later ended their marriage after more than a decade together. Their separation changed the family structure, but Thomas and Zoe remained connected to both parents. Dennis and Kimberly consequently continued sharing parental responsibilities after their relationship ended.

Does Dennis Quaid Have Custody of Thomas Boone Quaid?

Dennis Quaid does not have sole custody of Thomas Boone Quaid and Zoe Grace Quaid. Following the end of his marriage to Kimberly Buffington, custody of the twins became a shared responsibility between their mother and father.

This arrangement allowed Thomas and Zoe to continue maintaining relationships with both parents. Their parents’ separation did not remove either Dennis or Kimberly from the twins’ lives, and both remained important figures during their childhood.

Thomas has consequently spent his younger years within a family structure involving both parents despite their divorce. At the same time, much of the twins’ private routine has remained outside public attention, giving them greater privacy than might normally be expected for the children of a famous actor.

Thomas Boone Quaid’s Siblings

Thomas Boone Quaid has his twin sister, Zoe Grace Quaid, and an older half-brother named Jack Quaid. Jack was born on April 24, 1992, in Los Angeles, California. His parents are Dennis Quaid and actress Meg Ryan.

Jack is approximately 15 years older than Thomas and Zoe. Unlike the twins, he followed the entertainment path of his parents and developed an acting career. His work includes appearances in The Hunger Games and the television series The Boys.

Thomas therefore belongs to a family with strong Hollywood connections even though he has remained away from acting himself. His relationship with Jack also connects different periods of Dennis Quaid’s family life, while Zoe has shared Thomas’s everyday experiences from the moment they were born.

Thomas Boone Quaid’s Family Background

Thomas Boone Quaid comes from a family closely associated with entertainment and real estate. His father built his public reputation through acting, while his mother developed her professional life in the real estate industry. His older half-brother also became an actor.

Dennis Quaid was married before his relationship with Kimberly. He married actress P. J. Soles in 1978, and their marriage ended in 1983. He later married Meg Ryan in 1991, and they welcomed Jack before ending their marriage in 2001.

Thomas entered Dennis’s family years later alongside Zoe. Although his family includes several famous figures, Thomas himself has remained a much more private person. Most public interest surrounding him has therefore centered on his family background and remarkable survival story rather than a public career.

Where Is Thomas Boone Quaid Now?

Thomas Boone Quaid has grown considerably since the medical emergency that defined the earliest days of his life. He and Zoe recovered from the heparin incident and went on to experience the normal stages of childhood and adolescence.

Descriptions shared about the twins as they grew portrayed them as healthy and doing well academically. Their father also enjoyed spending ordinary family time with them, including driving them to school. These details show a very different picture from the frightening circumstances surrounding their infancy.

Thomas turned 18 on November 8, 2025. As of September 2026, he is 18 years old. He continues to be known primarily through his family connection and childhood story while maintaining considerably more privacy than his famous father and older brother.

Final Thoughts

Thomas Boone Quaid is Dennis Quaid and Kimberly Buffington’s son and the twin brother of Zoe Grace Quaid. Born through gestational surrogacy in November 2007, Thomas experienced an extraordinary medical crisis within the first days of his life.

The accidental heparin overdose placed both Thomas and Zoe in serious danger. Fortunately, they recovered. The experience deeply affected their parents and encouraged efforts to raise awareness about medication errors and improve patient safety in hospitals.

Thomas has since grown up largely outside the public spotlight. Now 18 years old as of September 2026, he remains best known for his connection to the Quaid family and the remarkable survival story he shares with his twin sister.

(FAQs)

Who is Thomas Boone Quaid?

Thomas Boone Quaid is the son of American actor Dennis Quaid and real estate agent Kimberly Buffington. He was born through gestational surrogacy alongside his twin sister, Zoe Grace Quaid, on November 8, 2007.

How old is Thomas Boone Quaid?

Thomas Boone Quaid was born on November 8, 2007. He turned 18 years old on November 8, 2025, making him 18 as of September 2026. His zodiac sign is Scorpio.

What happened to Dennis Quaid’s twins?

Thomas and Zoe developed infections shortly after birth and were hospitalized. During treatment, they reportedly received 10,000-unit doses of heparin instead of the intended 10 units. Both twins survived the dangerous medication error.

Who is Thomas Boone Quaid’s twin sister?

Thomas Boone Quaid’s twin sister is Zoe Grace Quaid. They share the same birthday, November 8, 2007. Thomas was born approximately two minutes before Zoe, making him the older of the twins.

Who are Thomas Boone Quaid’s parents?

Thomas Boone Quaid’s parents are American actor Dennis William Quaid and real estate agent Kimberly Buffington. The former couple married in July 2004 and welcomed Thomas and Zoe through gestational surrogacy in November 2007.

you may also read: Where is Mary Joan Schutz Now? The Private Life Of Gene Wilder’s Ex-Wife