Thomas Boone Quaid is the son of actor Dennis Quaid and his former wife, Kimberly Buffington. He was born in November 2007 alongside his twin sister, Zoe Grace Quaid. His older half-brother, Jack Quaid, is also an actor.
Although Thomas belongs to a well-known family, information about his own life is limited. Public attention first focused on him when he and Zoe survived a dangerous medication error shortly after birth. Their parents later used their experience to raise awareness about preventable medical mistakes.
His story includes a famous father, a closely documented medical emergency, and a childhood largely kept away from public view. Understanding those different parts helps explain who he is without turning private details into unsupported claims.
Who Is Thomas Boone Quaid?
Thomas Boone Quaid is one of Dennis Quaid’s three children. His mother is Kimberly Buffington, a real estate professional who married the actor in 2004. Thomas and Zoe were the couple’s children together.
His connection to the entertainment industry comes through his family. Dennis has appeared in films such as The Parent Trap and The Rookie, while Jack has built his own acting career. However, those family connections do not establish a career in entertainment for Thomas.
The available reporting focuses mainly on his birth, family background, and the hospital incident he experienced as an infant. There is much less verified information about his interests, daily routine, or personal goals.
For that reason, his biography is best understood through the events and relationships that have been publicly confirmed. Claims about his personality or ambitions require evidence beyond his family name.
When and Where Was He Born?
Thomas was born on November 8, 2007, in Santa Monica, California. He and his twin sister were born through a gestational carrier. The announcement at the time identified Dennis and Kimberly as their biological parents.
He arrived first, at 8:26 a.m., weighing 6 pounds, 12 ounces. Zoe was born two minutes later and weighed 5 pounds, 9 ounces. Their full names were announced as Thomas Boone Quaid and Zoe Grace Quaid.
As of November 5, 2026, Thomas is 18 years old. He turns 19 on November 8, 2026. Giving the date alongside his age helps prevent an otherwise accurate detail from becoming misleading as time passes.
In congressional testimony, his parents said the twins were born four weeks early and initially went home after three days in the hospital. The health emergency that later attracted national attention happened after that first homecoming.
His Parents and Their Marriage
Dennis Quaid and Kimberly Buffington met in 2003 through a mutual friend in Austin, Texas, according to the actor’s spokeswoman. They married on July 4, 2004, in Montana.
At the time, Kimberly was described as a Texas real estate professional. Dennis was already an established actor and the father of Jack, his son with Meg Ryan. Jack served as best man at the wedding.
The marriage later went through several separations and reconciliations. Kimberly filed for divorce again in 2016, and the divorce was finalized in 2018. These dates are sometimes confused in online biographies.
Reports about their divorce settlement described shared legal and physical custody of Thomas and Zoe. Those reports explain the arrangements made during the twins’ childhood. They do not establish either twin’s current home or adult living arrangements.
His Relationship to Zoe and Jack Quaid
Zoe Grace Quaid is Thomas’s twin sister. They share the same parents and birthday, with Thomas being older by two minutes. Much of the reporting about their early years discusses them together.
Both twins developed staph infections as newborns, entered the same hospital for treatment, and were affected by the medication error. Their names therefore appear together in medical reporting, family interviews, and their parents’ public statements.
Jack Quaid is their older paternal half-brother. Born on April 24, 1992, he is the son of Dennis Quaid and Meg Ryan. He is known for acting roles in The Hunger Games and the television series The Boys.
The family connections can cause confusion. Meg Ryan is Jack’s mother, while Kimberly Buffington is the mother of Thomas and Zoe. Meg’s adopted daughter, Daisy, is Jack’s sister through his mother; she is not Thomas’s sibling.
The Hospital Emergency in November 2007
Soon after the twins came home, Kimberly noticed irritation around Thomas’s belly button and on Zoe’s finger. According to the parents’ later testimony, a pediatrician referred them to Cedars-Sinai Medical Center in Los Angeles.
Tests showed that both babies had staph infections. They were admitted for intravenous antibiotic treatment. While caring for the twins, hospital staff were supposed to use a small amount of a heparin product to keep their IV lines clear.
Instead, the babies received a much stronger heparin dose. Dennis testified that they were given 10,000 units rather than the intended 10 units. He said the error occurred twice over an eight-hour period.
The overdose was life-threatening because heparin affects the blood’s ability to clot. The infection had brought the twins into the hospital, but the medication mistake created a separate emergency during their treatment.
Their Recovery and Return Home
Thomas and Zoe survived the overdose. Dennis later described the long wait as doctors monitored the babies and their blood-clotting measurements returned toward normal.
Reporting stated that both twins recovered and were discharged by early December 2007. Their return home marked the end of the immediate hospital crisis, although the incident continued to receive public attention.
In March 2008, Dennis spoke about feeling more grateful for ordinary moments with his children. He described the relief of holding them and returning to the everyday demands of caring for two babies.
Later coverage, including reporting from 2010, described the twins as active children. These accounts document their recovery at particular points in time. They should not be expanded into claims about private medical information that has not been publicly shared.
How Their Experience Inspired Patient Safety Work
After the hospital incident, Dennis and Kimberly established The Quaid Foundation to raise public awareness about medical errors. Their efforts drew attention to the harm that can result from mistakes involving drugs and doses.
On May 14, 2008, Dennis testified before a committee of the U.S. House of Representatives. He described the twins’ overdose and discussed the rights of patients and families seeking legal action after harm involving prescription drugs.
His work continued beyond that hearing. In April 2010, he spoke at the National Press Club about preventing medication errors. During that appearance, he also announced that The Quaid Foundation had merged with the Texas Medical Institute of Technology.
The family’s experience was included in the 2010 documentary Chasing Zero: Winning the War on Healthcare Harm. This work belongs to the public response led by Thomas’s parents. There is no basis for describing Thomas himself as the founder of the organization or the leader of its advocacy.
Childhood and Life Outside Public Attention
Dennis has shared occasional comments about being a father, but detailed accounts of the twins’ childhood are uncommon. Much of what is publicly known comes from short interviews rather than regular coverage of their lives.
In 2018, he said fatherhood had helped him become more patient and less focused on himself. In July 2023, he expressed pride in all three children, including Thomas and Zoe.
Those comments show how Dennis has spoken about his family. They do not reveal Thomas’s own thoughts about growing up with a famous parent or provide a full picture of his childhood.
The same care applies to claims about hobbies, friendships, and relationships. Without reliable confirmation, such details should remain outside a factual biography. Public interest in a person does not make every part of their life publicly known.
Education and His Future Plans
A report published in May 2026 stated that Thomas planned to attend the University of Colorado Boulder after high school. The information was attributed to his social media account.
That report provides a dated account of his college plans. It does not independently establish that he later enrolled, what subject he chose, or whether his plans changed. Describing it as a reported intention keeps the wording accurate.
There is also no established professional path for him in the available material. His father and half-brother work as actors, but that does not mean Thomas intends to follow them into film or television.
Similarly, there is no reliable personal net worth figure supported by these sources. His father’s income, family assets, and divorce payments cannot be used to calculate his individual finances.
Final Thoughts
Thomas Boone Quaid is part of a well-known family, but the public record about his own life remains limited. The clearest facts concern his birth, his parents and siblings, and the serious hospital error he survived alongside Zoe.
His parents’ response brought wider attention to patient safety. As Thomas moves into adulthood, an accurate biography should leave room for his life to develop without assigning him an unconfirmed career, lifestyle, or personal story.
(FAQs)
Who are Thomas Boone Quaid’s parents?
His parents are actor Dennis Quaid and real estate professional Kimberly Buffington. Their divorce was finalized in 2018.
Does Thomas Boone Quaid have a twin?
Yes. His twin sister is Zoe Grace Quaid. They were born on November 8, 2007, with Thomas arriving two minutes earlier.
Was Thomas Boone Quaid born through a surrogate?
Yes. Thomas and Zoe were born through a gestational carrier. Their birth announcement identified Dennis and Kimberly as their biological parents.
Did Thomas Boone Quaid survive a heparin overdose?
Yes. He and Zoe survived an accidental heparin overdose while receiving hospital treatment for staph infections in November 2007.
Is Thomas Boone Quaid an actor?
The available reliable reporting does not establish an acting career for him. His father, Dennis Quaid, and older half-brother, Jack Quaid, are actors.
__________________________________________________________________________________
Read Next: Kaynette Williams: All About Blake Shelton’s First Wife