Thomas Boone Quaid is the son of actor Dennis Quaid and real estate agent Kimberly Buffington. He is the fraternal twin of Zoe Grace Quaid and the younger half-brother of actor Jack Quaid. He was born on November 8, 2007, which means he turns 19 in 2026. According to a People report from August 2026, he is now studying business at the University of Colorado Boulder.Most people first heard his name for a frightening reason.
Days after he was born, Thomas and his sister received a massive heparin overdose at Cedars-Sinai Medical Center in Los Angeles. Both babies recovered, and the ordeal pushed their parents into years of patient-safety work.This guide sticks to what reliable sources confirm. It also clears up the wrong birthdates, wrong mothers, and invented careers that appear on many low-quality pages.
Thomas Boone Quaid: Quick Facts
| Detail | Information |
| Full name | Thomas Boone Quaid |
| Nickname in press coverage | T. Boone |
| Date of birth | November 8, 2007 |
| Age | Turns 19 on November 8, 2026 |
| Birthplace | Santa Monica, California |
| Birth details | Born at 8:26 a.m., weighing 6 lb 12 oz, two minutes before his sister |
| How he was born | Through a gestational carrier, using Dennis and Kimberly’s own eggs and sperm |
| Nationality | American |
| Father | Dennis Quaid, actor (born 1954) |
| Mother | Kimberly Buffington, real estate agent |
| Twin sister | Zoe Grace Quaid |
| Older half-brother | Jack Quaid, actor (son of Dennis Quaid and Meg Ryan) |
| Parents’ marriage | July 4, 2004, to 2018 (divorce finalized April 27, 2018) |
| Early-life medical event | Heparin overdose at Cedars-Sinai Medical Center, November 18, 2007 |
| Dose error | About 1,000 times the intended strength, according to widely reported accounts |
| Treatment | Antidote drug protamine; both twins recovered |
| Reported settlement | Cedars-Sinai settlement reported at $750,000, with the money divided between the twins |
| Congressional testimony | Dennis and Kimberly testified on May 14, 2008, before the House Oversight and Government Reform Committee |
| Education | High school graduate (2026); business student at the University of Colorado Boulder |
| Profession | Student |
| Acting credits | None verified in reliable sources |
| Net worth | Not publicly documented |
| Social media | No verified public profile found in sources reviewed |
Thomas Boone Quaid’s Birth and Early Life
Thomas and Zoe were born on November 8, 2007, in Santa Monica, California. Thomas arrived first at 8:26 a.m., and Zoe followed two minutes later. Dennis and Kimberly had faced five miscarriages before turning to a gestational carrier, a story Dennis shared with CBS News.
The twins were the biological children of Dennis and Kimberly. The carrier only carried the pregnancy. This detail matters because some websites wrongly claim a different mother.
Their first weeks looked normal until staph infections appeared when the babies were about 11 days old. A pediatrician sent them to Cedars-Sinai Medical Center for IV antibiotics. That routine hospital stay is where the crisis began.
The Heparin Overdose That Nearly Killed Thomas and Zoe
Heparin is a blood thinner used in small doses to keep IV lines clear. Hospitals stock it in different strengths. The pediatric version is very weak, and the adult version is far stronger.
On November 18, 2007, the twins were given vials of the stronger version by mistake. Reports describe a dose about 1,000 times higher than intended, and AARP reported that the error happened twice. The family learned of it early the next morning and rushed to the hospital.
Doctors gave Thomas and Zoe protamine, a drug that reverses heparin’s effect. Both babies survived and recovered. Cedars-Sinai said at the time that no lingering health problems were known. Dennis later said he still worried about long-term effects, which is a common feeling for parents after a scare like this.
Why the Thomas Boone Quaid Medical Case Mattered
The case worked as a national wake-up call because the mistake was not exotic. It came from a chain of small failures that can happen in any busy hospital. Oprah’s coverage reported that a pharmacy technician placed larger-dose vials in the same bin as smaller ones. The hospital also cited at least three safety lapses in its own review.
The labels added to the confusion. In testimony to Congress, the Quaids said Baxter Healthcare had changed its heparin labeling only a month earlier, and the new labels had not reached Cedars-Sinai’s shelves. A similar heparin overdose had killed three infants at an Indianapolis hospital the year before, so the warning signs already existed.
Here are the main lessons safety experts drew from the case:
- Look-alike vials should never share storage space.
- Bedside bar code scanning catches wrong drug and wrong patient errors.
- Every high-risk drug needs an independent double check.
- Hospitals should learn from other hospitals’ errors quickly.
Dennis and Kimberly Quaid’s Patient-Safety Advocacy
Dennis and Kimberly chose not to hide. In early 2008 they launched the Quaid Foundation to push hospitals toward better safety systems, including bedside bar coding. Dennis also spoke at conferences, including Health Journalism 2008 and the HIMSS09 keynote.
On May 14, 2008, the couple testified before the House Committee on Oversight and Government Reform. Dennis argued that people harmed by medication errors should keep the right to sue drug companies. He said the family did not want to sue Cedars-Sinai because good hospitals matter, and he praised many caregivers.
The family sued Baxter, the heparin maker, in December 2007. Cedars-Sinai was described as a potential defendant but was not sued. The hospital later settled with the family, reportedly for $750,000, and agreed to cover medical care tied to the overdose. Dennis said the hospital also invested in safety technology. A hospital spokesperson said some of that work had started before the incident.
Dennis also produced the documentary Chasing Zero: Winning the War on Healthcare Harm and wrote about the power of patient stories in the Journal of Patient Safety.
Growing Up as Dennis Quaid’s Son
Thomas grew up in Los Angeles with a famous father but a fairly ordinary public profile. Photographers caught him at youth baseball outings and family events in the early 2010s. After that, press coverage dropped sharply.
Both parents have spoken warmly about the twins in interviews. Dennis has said it was very emotional dropping the twins off at college and that he really misses them. That is about the extent of verified detail, and it is enough to show a close family bond.
It also reflects a choice. The Quaids made the twins’ infancy public to push for change, but they have kept their later childhood largely private.
Thomas Boone Quaid and His Twin Sister Zoe Grace Quaid
Thomas and Zoe are fraternal twins, so they are not identical. Both were born on November 8, 2007, and both survived the same medical emergency within their first weeks of life.
Zoe is also a college student. Dennis told People that she studies business at the University of Virginia, while Thomas studies business at the University of Colorado Boulder. They now live in different states after growing up side by side.
Several sites call Zoe a model or Thomas a musician. Neither claim is backed by trustworthy reporting.
Thomas Boone Quaid and Jack Quaid
Jack Quaid is Thomas’s older half-brother. He is the son of Dennis Quaid and actress Meg Ryan, who were married from 1991 to 2001. Jack is 34 in 2026, which puts roughly 15 years between him and the twins.
Jack is the family’s best-known working actor in the younger generation. He appeared in the first Hunger Games film, played Hughie in The Boys, and voiced Boimler in Star Trek: Lower Decks. He also starred in Scream in 2022.
Public reporting about how often Thomas and Jack spend time together is thin. Anyone claiming detailed stories about their relationship is guessing.
Who Is Thomas Boone Quaid’s Mother?
Thomas Boone Quaid’s mother is Kimberly Buffington, a real estate agent from Texas. She met Dennis Quaid around 2003, and they married on July 4, 2004, at his ranch in Paradise Valley, Montana.
The marriage had a bumpy stretch. The couple separated in 2016, and the divorce became final on April 27, 2018. Both parents stayed involved with the twins. People reported that Dennis and Kimberly attended Thomas’s graduation ceremony together and posed for photos.
People also reported in May 2026 that Dennis filed to end $13,750 in monthly child support after the twins finished high school, citing the 2018 divorce agreement. That is a legal matter between the parents and says little about Thomas himself.
Thomas Boone Quaid’s Education
Thomas graduated from high school in Los Angeles in 2026. Reporting does not clearly name his school, so this article does not either. Several low-quality sites guess at it, and those guesses are not verified.
After graduation he began college. People reported in August 2026 that Thomas is attending the University of Colorado Boulder, where he studies business. Dennis said the twins started that month and that he had dropped them off the previous week.
For readers searching “where is Thomas Boone Quaid going to college,” the sourced answer is simple: CU Boulder, with a business focus.
Is Thomas Boone Quaid an Actor?
No verified source shows Thomas Boone Quaid working as an actor. He has no confirmed film, television, or stage credits. His father and half-brother are actors, but that does not mean Thomas follows the same path.
Pages that call him an “emerging star” or a “musician and actor” rarely cite anything. Some even assign him the wrong parents. Treat these claims as filler.
If he ever chooses acting, it will likely show up in trade publications such as Variety or Deadline. For now, the best-supported description of his work is student.
Thomas Boone Quaid’s Life Today
As of November 2026, Thomas turns 19, lives away from home, and attends the University of Colorado Boulder. Dennis said he lives full-time in Nashville now, calling the empty nest “dreamy” while admitting he misses the kids.
Thomas has no known professional career, public brand, or verified social media account. That fits the pattern of a young adult who is using college to build his own identity.
Here is what we can say with confidence about his present:
- He is an adult who turned 18 on November 8, 2025.
- He is a business student at CU Boulder.
- His twin sister is studying in Virginia.
- His parents and siblings remain publicly supportive.
Why There Is So Little Reliable Information About Thomas
Thomas has never given a public interview in his own voice. Nearly everything known comes from his father, from court records tied to the 2007 incident, or from People reporting. That makes thorough coverage hard.
Many websites fill the gap with copied text and repeated errors. Several recent pages simply rewrite each other, so one mistake spreads quickly. Search engines also rank those pages because they use the right keywords, even when the facts are shaky.
When you read about any private person, ask three questions. Is there a named primary source? Is the date visible? Does the page separate confirmed facts from guesses?
Common Myths and Unsupported Claims About Thomas Boone Quaid
Online pages repeat several errors. Here are the most common ones with the corrected facts:
- Wrong birthdates: Some pages say April 28, June 28, July 28, 1996, or 2006. The reliable date is November 8, 2007.
- Wrong mother: Claims that his mother is Meg Ryan, Meg Tilly, or P.J. Soles are false. His mother is Kimberly Buffington.
- “Twin brother”: His twin is a sister, Zoe Grace Quaid.
- Full brother of Jack: Jack is a half-brother through Meg Ryan.
- Career claims: No verified acting or music career exists.
- “Dennis sued the hospital”: The family sued Baxter. Cedars-Sinai settled without being sued.
- Permanent harm: Reports at the time said the twins recovered, and no lasting issues were publicly identified.
What Thomas Boone Quaid’s Story Teaches About Medical Safety
His story is a useful case study for families. Medication errors are a known risk in hospitals, even excellent ones. The goal is not fear but smarter questions.
If someone you love is in the hospital, these steps can help:
- Ask the nurse to name each drug and dose before it is given.
- Keep a written list of medications and allergies.
- Speak up if a medicine looks different from the last one.
- Ask whether the hospital uses bedside bar code scanning.
- Report concerns to the patient safety or risk department.
This is general information, not medical advice. Always follow guidance from a qualified clinician.
Privacy and the Modern Celebrity Child
Thomas now sits at an interesting crossroads. His birth story was public long before he could consent to it. As an adult, he can decide what to share, and so far he has shared very little.
That deserves respect. Searching for a famous child’s name is normal, but publishing guesses about his health, relationships, or finances is not. Accurate, limited information beats a long article built on rumors.
Good coverage focuses on public facts: his parents’ own advocacy, his graduation, and his college enrollment as reported by People. It stays away from private details that nobody confirmed.
The Quaid Family Legacy
The Quaid name already carries acting history. Dennis built a career with films such as The Right Stuff, The Big Easy, The Parent Trap, and The Day After Tomorrow. Jack is carrying that legacy forward on television and in film.
The twins add a different kind of legacy. Their ordeal helped bring attention to hospital safety and drug labeling. Few celebrity children can say their birth story shaped national conversations in that way.
So the family tree includes entertainers and safety advocates. Thomas may add something new, but that is for him to decide.
Why People Continue Searching for Thomas Boone Quaid
Several reasons keep his name trending:
- Dennis Quaid remains well known and often talks about his children.
- The 2007 heparin story still appears in patient-safety training and news.
- His 18th birthday in 2025 and college start in 2026 created fresh interest.
- Search results are full of conflicting pages, so readers keep looking for clear answers.
Each new milestone, like his 19th birthday on November 8, 2026, brings another wave of searches. This guide will stay accurate only if new reporting is added carefully.
Conclusion
Thomas Boone Quaid is the son of Dennis Quaid and Kimberly Buffington, the twin brother of Zoe Grace Quaid, and the half-brother of Jack Quaid. He was born on November 8, 2007, survived a near-fatal heparin overdose as a newborn, and now studies business at the University of Colorado Boulder.His story is bigger than celebrity trivia. It shows how a single medication mix-up can happen anywhere, and how one family turned it into advocacy. It also shows why careful sourcing matters when writing about a young adult who has chosen privacy.
Have you heard a claim about Thomas that does not match these facts? Share this guide with someone who needs the accurate version, and check news from reliable outlets for any future updates.
FAQs
1. Who is Thomas Boone Quaid?
Thomas Boone Quaid is the son of actor Dennis Quaid and Kimberly Buffington. He is the twin brother of Zoe Grace Quaid and the half-brother of actor Jack Quaid.
2. How old is Thomas Boone Quaid?
He was born on November 8, 2007, so he turns 19 on November 8, 2026.
3. What happened to Thomas Boone Quaid when he was a baby?
In November 2007, he and his twin sister received a heparin overdose at Cedars-Sinai Medical Center. Both babies recovered after treatment with the antidote protamine.
4. Is Thomas Boone Quaid an actor like Dennis and Jack Quaid?
No verified acting credits exist for him. Reliable reports describe him as a college student.
5. Where is Thomas Boone Quaid going to college?
He attends the University of Colorado Boulder, where People reported he is studying business. His twin sister Zoe attends the University of Virginia.
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