Thomas Boone Quaid is the son of American actor Dennis Quaid and Kimberly Buffington. He was born on November 8, 2007, and he appeared in the news when he was only a few days old, after a hospital medication error put him and his twin sister in danger. Today he is 18 years old and lives a private life. This biography gathers the confirmed facts about his life story and corrects some wrong details that appear on other websites.
Thomas Boone Quaid: Quick Facts
| Detail | Information |
|---|---|
| Full name | Thomas Boone Quaid |
| Date of birth | November 8, 2007 |
| Age (October 2026) | 18 |
| Birthplace | Santa Monica, California, USA |
| Nationality | American |
| Father | Dennis Quaid (actor) |
| Mother | Kimberly Buffington (real estate agent) |
| Twin sister | Zoe Grace Quaid |
| Half-brother | Jack Quaid (actor, son of Dennis Quaid and Meg Ryan) |
| Known for | Being Dennis Quaid’s son; surviving a 2007 hospital overdose as a baby |
| Public career | None confirmed |
| Social media | No verified public account found |
Who Is Thomas Boone Quaid?
Thomas is not an actor, singer, or businessman, even though some websites say so. He is a private young man whose public story comes mostly from his birth and his family. He became known because his father is famous and because of the medical emergency that happened when he was a newborn. Reliable news sources do not report a career, a public project, or a verified social media profile for him.
That is why this article stays close to what has been published by established outlets. Where nothing is confirmed, we say so.
Birth and Early Life
Thomas was born on a Thursday, November 8, 2007, in Santa Monica, California. His birth was announced by his father’s publicist a few days later. Reports from that time say he arrived at 8:26 a.m. and weighed 6 pounds 12 ounces. His twin sister, Zoe Grace, was born about two minutes after him and weighed 5 pounds 9 ounces.
The twins were born through a gestational surrogate. This means another woman carried the babies, but the babies were the biological children of Dennis Quaid and Kimberly Buffington. The parents said at the time that they felt blessed by the arrival of both children.
Soon after birth, the babies were treated for a staph infection in hospital. They were still very young when the most serious event of their early lives took place.
The 2007 Hospital Medication Error
When the twins were about 12 days old, they were being treated at Cedars-Sinai Medical Center in Los Angeles. In November 2007, both babies were given an adult-strength dose of the blood thinner heparin by mistake. News reports said the dose was far stronger than intended, and later accounts described it as roughly 1,000 times the correct amount. Heparin vials with different strengths can look alike, and that kind of confusion had been the subject of safety warnings earlier that year.
Doctors recognized the problem, and the babies received treatment to reverse the effect. Both children recovered. They were later released from hospital and went home in early December 2007.
What happened next
- Lawsuits: The Quaids sued the drug maker Baxter Healthcare in Illinois over the labeling of the vials. That case was dismissed, because the overdose took place in California.
- Settlement: In 2008, the Quaids agreed to a $750,000 settlement with Cedars-Sinai. The hospital did not admit wrongdoing, according to court documents reported by the media. A later court filing said the money would be divided evenly between Thomas and Zoe.
- Patient safety work: Dennis Quaid spoke publicly about the event, testified before the U.S. Congress in 2008, and produced a documentary called Chasing Zero, which focuses on preventable harm in healthcare. Cedars-Sinai said it was already improving safety systems, and it also announced added steps after the incident.
Thomas was a baby at the time, so these actions were taken by his parents. Still, the case is the main reason his name became widely searched.
Family Background
Father: Dennis Quaid is a well-known American actor with a long career in film and television, including The Parent Trap and The Day After Tomorrow.
Mother: Kimberly Buffington is a real estate agent. She married Dennis Quaid in July 2004. Reports say she filed for divorce in 2012, and the couple first reconciled. They announced a split again in 2016, and the divorce was finalized in April 2018.
Twin sister: Zoe Grace Quaid is Thomas’s fraternal twin, not an identical twin, which means they do not look exactly alike. Like her brother, she keeps a low public profile.
Half-brother: Jack Quaid was born in 1992 to Dennis Quaid and actress Meg Ryan. Jack works as an actor, which is one reason fans sometimes mix up the Quaid family members online.
Education, Career, and Public Life
There is no confirmed information about where Thomas studies or what he plans to do after school. This is normal for the child of a public figure whose family has chosen privacy. As of 2026, no major outlet has reported an acting role, music release, business, or other public career for him.
For this reason, any article that lists film roles, awards, or company titles for Thomas Boone Quaid should be treated with caution. We also chose not to publish details such as his school, home, or any personal account, because the available information is unverified and he is a private person.

Thomas Boone Quaid’s Age and Key Dates
| Year | Event |
|---|---|
| 2004 | His parents, Dennis Quaid and Kimberly Buffington, marry |
| 2007 | Born November 8 in Santa Monica; hospital medication error follows later that month |
| 2008 | Family settles with Cedars-Sinai; his father speaks to Congress about patient safety |
| 2018 | His parents’ divorce is finalized |
| 2025 | Turns 18 on November 8 |
| 2026 | Age 18; turns 19 on November 8, 2026 |
Common Mistakes About Thomas Boone Quaid Online
While researching this life story, I found many pages with conflicting claims. Some of the errors are large:
- Wrong birth dates. Pages list his birthday as April 28, 2007, October 8, 1984, April 25, 1963, or December 20, 1996. News reports from 2007 clearly place his birth on November 8, 2007.
- Wrong mother. One page names actress P.J. Soles as his mother. Reliable sources name Kimberly Buffington.
- Invented careers. Some websites call him an actor, entrepreneur, guitarist, or computing expert. No trusted source supports these claims.
- Mixed-up identity. Some pages copy Dennis Quaid’s own birth details and career into Thomas’s profile.
If you see a number or job title that does not match the facts above, check the original source before sharing it.
Net Worth
No reliable figure exists for Thomas Boone Quaid’s personal wealth. Any number you see online is a guess, and we do not repeat it here.
How This Was Researched
I researched this biography by reviewing the top-ranking pages for his name and then checking their claims against 2007 and 2008 news reports, court-related coverage, and family profiles. Many ranking pages disagreed on basic facts like his birth date, so I used only details that appeared across more than one established source. I did not find any verified 2026 news about Thomas himself, and I say that openly instead of filling the gap. My goal was to give readers a clear, corrected profile that most competing pages do not offer.
Accuracy Note
This biography is based on publicly available information, including 2007 and 2008 news coverage and family profiles. Thomas Boone Quaid is a private person, so we have limited the article to confirmed facts. If you spot anything outdated or incorrect, please let us know so we can update it.
Written and researched by Muhammad Huzaifa, contributor at Aurel Magazine.
