Zoe Grace Quaid is the 18-year-old daughter of Hollywood actor Dennis Quaid, and she has grown up far from the spotlight despite her famous last name. She was born on November 8, 2007, in Santa Monica, California, alongside her twin brother Thomas Boone Quaid. Unlike many celebrity children, Zoe has lived a quiet and private life, and her story is one of resilience, family, and survival against the odds.
Zoe Grace Quaid Biography
| Attribute | Information |
| Full Name | Zoe Grace Quaid |
| Date of Birth | November 8, 2007 |
| Age (as of 2026) | 18 years old |
| Place of Birth | Santa Monica, California, USA |
| Nationality | American |
| Famous For | Daughter of actor Dennis Quaid |
| Father | Dennis Quaid |
| Mother | Kimberly Buffington |
| Twin Brother | Thomas Boone Quaid |
| Half-Brother | Jack Quaid |
| Birth Method | Born via gestational carrier |
| Early Health Crisis | Survived a Heparin overdose as a newborn |
| Major Life Event | Close to the 2025 Texas floods while working as a camp counselor |
| Public Appearance | Attended the premiere of the film Reagan |
| Lifestyle | Private and low-profile |
| Education | Private schooling; likely high school graduate |
| Residence | United States |
Who Is Zoe Grace Quaid?
Zoe Grace Quaid is best known as the daughter of actor Dennis Quaid and real estate professional Kimberly Buffington.
She entered the world through a gestational carrier, a decision her parents made after facing fertility challenges. Her full name is Zoe Grace Quaid, and she also goes by the nickname “Z.G.” among close family members. She is the younger half-sister of actor Jack Quaid, Dennis’s son from his marriage to Meg Ryan. Despite being part of a famous Hollywood family, Zoe has never pursued fame or public attention.
Early Life and Birth Story
Zoe Grace Quaid was born on November 8, 2007, in Santa Monica, California, just two minutes after her twin brother Thomas.
The twins were born via a gestational carrier, which allowed Dennis Quaid and Kimberly Buffington to expand their family safely. At the time of her birth, Dennis Quaid was already a well-established Hollywood actor with decades of film work behind him. Her early days were filled with joy, but that happiness was soon interrupted by a terrifying medical emergency. Her parents deliberately kept her early years private, shielding her from the constant media attention that often follows celebrity families.
Parents: Dennis Quaid and Kimberly Buffington
Dennis Quaid is one of Hollywood’s most recognizable actors, known for films like The Parent Trap, The Rookie, and Reagan.
He married Kimberly Buffington in 2004, and the couple welcomed their twins three years later. Kimberly Buffington worked as a real estate professional and focused on creating a stable and nurturing home environment for her children. The couple separated in 2016 and finalized their divorce in 2018, but they maintained a cooperative co-parenting relationship centered on their children’s well-being. Dennis has often spoken about how fatherhood changed his perspective on life, calling himself a “dorky dad”.
Zoe Grace Quaid and Her Twin Brother Thomas Boone Quaid
Zoe shares an incredibly close bond with her twin brother Thomas Boone Quaid, who was born just minutes before her.
The twins grew up side by side, experiencing the same milestones, challenges, and defining life events together. Thomas was born first, making Zoe the younger of the two by just two minutes. Like his sister, Thomas has stayed largely out of the public eye and focused on his education. In 2026, Thomas graduated from high school on June 3 and headed to the University of Colorado Boulder to study business.
Zoe Grace Quaid’s Relationship with Jack Quaid
Jack Quaid is Zoe’s older half-brother, born in 1992 to Dennis Quaid and actress Meg Ryan.
Jack has followed in his parents’ footsteps and built a successful acting career, starring in projects like The Boys. Although Jack grew up in a different household, he remains a part of Zoe’s extended family. Jack is the big brother to his father’s twins, Thomas and Zoe, as well as his mother’s daughter Daisy. Zoe’s relationship with Jack has remained private, but the family maintains a supportive connection.
The 2007 Heparin Overdose and Medical Emergency
Just two weeks after their birth, Zoe and her twin brother faced a life-threatening medical emergency when they were accidentally given a massive overdose of the blood thinner Heparin.
The twins were being treated for a minor infection at Cedars-Sinai Medical Center when hospital staff mistakenly administered 10,000 units of Heparin instead of the normal 10 units. The overdose was 1,000 times stronger than the intended dose, and the babies started to “bleed out” shortly after receiving the drug. The error occurred because a technician stored the Heparin in the wrong place, leading to a mix-up with a different medication. The hospital later called it a “preventable error” involving a failure to follow standard policies.
How Zoe Grace Quaid Recovered and the Family’s Patient Safety Advocacy
Thankfully, both Zoe and Thomas made a full recovery after receiving emergency treatment to reverse the effects of the Heparin.
Doctors quickly realized the mistake and placed the twins in intensive care, where they were monitored closely while medical teams worked to stabilize their condition. The overdose deeply affected the Quaid family, and Dennis Quaid later became a vocal advocate for hospital safety. He helped create the Quaid Foundation, an organization dedicated to preventing medication errors in healthcare systems. The foundation works to improve patient safety procedures and raise awareness about mistakes that can occur in hospitals. In 2009, the Quaid twins received a $500,000 settlement from Cedars-Sinai Medical Center, divided equally between Thomas and Zoe.
Does Zoe Grace Quaid Have a Career or Appear in Movies?
Zoe Grace Quaid has not pursued a career in acting or appeared in any movies, and she has chosen to live a private life away from Hollywood.
Unlike her father Dennis and half-brother Jack, Zoe has shown no interest in the entertainment industry. She does not maintain public social media accounts and rarely appears in interviews or entertainment news coverage. Her parents made deliberate efforts to shield her from constant media attention, focusing instead on providing structure, education, and privacy. Zoe’s life remains grounded rather than glamorous, despite her family’s Hollywood connections.
Zoe Grace Quaid’s Education and Current Life
Zoe Grace Quaid graduated from high school on May 23, 2026, and is now studying business at the University of Virginia.
Her father Dennis Quaid dropped her off at college in August 2026, marking a major milestone in her young life. Zoe’s twin brother Thomas is attending the University of Colorado Boulder, where he is also studying business. Dennis Quaid described the experience of sending his twins to college as “very emotional,” but he also found parts of being an empty-nester “dreamy”. His advice to Zoe and Thomas is simple: find something they love and figure out how to make a life from it.
Rare Public Appearance: Reagan Premiere 2024
Zoe Grace Quaid made a rare public appearance on August 20, 2024, when she attended the Los Angeles premiere of her father’s film Reagan.
She walked the red carpet with Dennis Quaid at the TCL Chinese Theatre in Hollywood, California. Photographers captured the father-daughter duo at the event, marking one of the few times Zoe has appeared publicly. Her appearance at the premiere showed that while she values her privacy, she still supports her father’s career. This event remains one of the most notable public moments in Zoe’s life so far.
Final Thoughts
Zoe Grace Quaid’s story is one of quiet strength, resilience, and a family that has weathered both medical crises and natural disasters.
From surviving a life-threatening Heparin overdose as a newborn to facing the 2025 Texas floods as a camp counselor, Zoe has shown remarkable maturity beyond her years. She has chosen a path of privacy and education, studying business at the University of Virginia while her famous family supports her from afar. Her journey proves that not every celebrity child seeks the spotlight, and some of the most inspiring stories are the ones lived away from the cameras.
FAQs About Zoe Grace Quaid
What happened to Dennis Quaid’s daughter Zoe?
Zoe Grace Quaid survived a life-threatening Heparin overdose as a newborn in 2007 and was confirmed safe during the 2025 Texas floods. She and her twin brother Thomas were accidentally given 1,000 times the intended dose at Cedars-Sinai Medical Center, but both made a full recovery. In July 2025, Zoe was working as a camp counselor in Texas when deadly flash floods struck the region.
How are Dennis Quaid’s twins doing?
Dennis Quaid’s twins, Zoe and Thomas, are both 18 years old and started college in the fall of 2026. Zoe is studying business at the University of Virginia, while Thomas is studying business at the University of Colorado Boulder. Dennis Quaid has said that dropping them off at college was an emotional but proud moment.
How much does Dennis Quaid pay in child support?
Dennis Quaid was paying $13,750 per month in child support to his ex-wife Kimberly Buffington for their twins. In May 2026, he filed a petition to end the payments after Zoe and Thomas graduated from high school. Their divorce agreement allowed the payments to stop when each child completed 12th grade.
What medical condition does Dennis Quaid have?
Dennis Quaid has publicly discussed his past struggles with cocaine addiction and anorexia, but he has been sober for decades. He developed anorexia after losing significant weight for his role in Wyatt Earp. Quaid later sought treatment and has since maintained a healthier lifestyle.
Why did Meg Ryan leave Dennis Quaid?
Meg Ryan and Dennis Quaid divorced in 2001 after nearly a decade of marriage. Ryan later said that Quaid had been unfaithful during their relationship and clarified that Russell Crowe was not the reason her marriage ended. The former couple shares one son, actor Jack Quaid.
Is Dennis Quaid a nice guy in real life?
Dennis Quaid is widely described as friendly and down-to-earth, although he once joked that people mistakenly think he is a “nice guy.” Fans and people who have met him have often praised his personality and relaxed nature. He is also known for being devoted to his family.
