Oona Gray Seppala is the eldest daughter of Suits actress Sarah Rafferty and finance professional Santtu Seppala. Born on October 22, 2007, she is 18 years old as of August 2026 and has a younger sister, Iris Friday Seppälä.
Although she grew up around the entertainment industry while her mother filmed Suits, Oona has largely remained outside the public spotlight. Interest in Oona Gray Seppala has grown alongside the renewed popularity of Suits on streaming platforms, leading to increased searches about her age, family, education, career and personal life.
However, much of the information published online about her is either unverified or inconsistent. This biography focuses on reliable, publicly available facts while clearly separating confirmed information from speculation.
Quick Answer: Who Is Oona Gray Seppala?
Oona Gray Seppala is the eldest daughter of Suits actress Sarah Rafferty and finance professional Santtu Seppälä. She was born on October 22, 2007, and is 18 years old as of August 20, 2026.
Oona Gray Seppala spent part of her childhood between Los Angeles and Toronto while her mother filmed Suits. She and her younger sister, Iris, frequently visited the show’s set, but there is no reliable public evidence establishing Oona as a professional actress or official Suits cast member.
Key Takeaways
- Born on October 22, 2007
- 18 years old as of August 2026
- Eldest daughter of Sarah Rafferty
- Father is finance professional Santtu Seppala
- Younger sister is Iris Friday Seppala
- Spent part of her childhood between Los Angeles and Toronto
- Frequently visited the Suits set while growing up
- No established professional acting career has been reliably documented
- Current college, career, relationships and personal finances remain private
- The surname is correctly spelled Seppala, while Seppala is the common unaccented search spelling
Oona Gray Seppala Profile
| Detail | Information |
|---|---|
| Full name | Oona Gray Seppälä |
| Common search spelling | Oona Gray Seppala |
| Date of birth | October 22, 2007 |
| Age in August 2026 | 18 |
| Mother | Sarah Rafferty |
| Father | Santtu Seppala |
| Younger sister | Iris Friday Seppala |
| Known for | Being Sarah Rafferty’s eldest daughter |
| Mother’s profession | Actress |
| Father’s profession | Finance/investment professional |
| Professional acting career | Not reliably established |
| Current education | Not publicly confirmed |
| Relationship status | Private/not reliably documented |
| Personal net worth | Not publicly established |
A January 2026 People profile identifies Oona Gray Seppala as 18 years old and reports her birth date as October 22, 2007. Sarah Rafferty’s IMDb biography also lists the same birth date, supporting the basic biographical information presented above.
Oona Gray Seppala or Oona Gray Seppala: Which Spelling Is Correct?
Readers researching Oona Gray Seppala may encounter both Oona Gray Seppala and the unaccented spelling. The accented form, Seppala, reflects the Finnish spelling of the family surname and is used by established sources such as People and IMDb. Oona Gray Seppala is the more common English-language search variation because the letter ä is often replaced with a standard a in search queries and URLs.
| Spelling | How It Is Used |
|---|---|
| Oona Gray Seppälä | Accented spelling used by established sources |
| Unaccented full name | Common English-language search variation |
| Oona Seppala | Shorter search variation |
| Sarah Rafferty daughter Oona | Relationship-based search phrase |
Throughout this article, the unaccented version is used naturally for search readability, while Seppälä is retained where the original Finnish spelling is relevant.
How Old Is Oona Gray Seppala?
Oona Gray Seppala is 18 years old as of August 20, 2026. She was born on October 22, 2007, which means she will turn 19 on October 22, 2026. People has reported the same birth date and previously covered Sarah Rafferty celebrating her daughter’s 13th birthday in 2020, supporting the age timeline for Oona Gray Seppala.
Oona Gray Seppala Age Timeline
| Year | Age or Milestone |
|---|---|
| 2007 | Born on October 22 |
| 2012 | About 4 when younger sister Iris was born |
| 2013 | 5 years old during Rafferty’s Redbook interview |
| 2020 | Turned 13 |
| 2024 | Turned 17 |
| August 2026 | 18 years old |
| October 22, 2026 | Turns 19 |
This timeline helps clarify conflicting ages that sometimes appear on celebrity-biography websites.
Who Is Oona Gray Seppala’s Mother?
The mother of Oona Gray Seppala is Sarah Rafferty, an American actress best known for portraying Donna Paulsen in the legal drama Suits. Rafferty appeared throughout the show’s nine-season run, and USA Network has described Donna as her breakout role, noting that she appeared in 132 of the series’ 134 episodes. Growing up as the daughter of a working television actress meant Oona Gray Seppala spent part of her childhood around the entertainment industry while still maintaining a relatively private public profile.
Sarah Rafferty has also appeared in productions including:
- Chicago Med
- Grey’s Anatomy
- My Life with the Walter Boys
- Bones
- Law & Order
- CSI: Crime Scene Investigation
Despite her demanding acting career, Rafferty has frequently spoken about the importance of motherhood. In a 2023 People interview, she said her life revolved around her children and expressed gratitude for having daughters Oona and Iris.
Sarah Rafferty and Oona Gray Seppala
The childhood of Oona Gray Seppala overlapped with some of the busiest years of Sarah Rafferty’s Suits career. Because the series filmed in Toronto while the family maintained a home base in Los Angeles, Rafferty and her family regularly moved together rather than spending long periods apart. In a 2013 Redbook interview, Rafferty explained that her five-year-old daughter attended two schools because of this arrangement. Based on Oona’s October 22, 2007 birth date, the daughter she was describing was Oona. Rafferty acknowledged that she initially worried about the frequent transitions but ultimately believed the experience helped build her daughter’s confidence and adaptability.
What Has Sarah Rafferty Said About Raising Oona?
Public comments from Sarah Rafferty provide some of the clearest insight into the upbringing of Oona Gray Seppala. In a Univision interview when Oona was eight, Rafferty said she wanted her elder daughter to remain true to herself and feel comfortable speaking openly with her parents. She also explained that a strong connection to family could give Oona greater confidence as she became more independent. Rafferty discussed encouraging empathy in her younger daughter, Iris, as well. Taken together, her comments suggest that communication, confidence, family connection and emotional support were important priorities in raising her daughters.
Who Is Oona Gray Seppala’s Father?
The father of Oona Gray Seppala is Aleksanteri Olli-Pekka “Santtu” Seppala, a finance and investment professional who has maintained a considerably lower public profile than his wife. USA Network reports that Santtu’s family is from Finland, that he grew up in Illinois, graduated from Yale University and later earned an MBA from the Wharton School at the University of Pennsylvania. The publication reported in 2023 that he worked in strategy and business development at Angeleno Group in Los Angeles. Because professional roles can change over time, that 2023 position is best treated as a documented past role rather than automatically presented as his current title in 2026 without newer confirmation.
How Did Sarah Rafferty and Santtu Seppala Meet?
Sarah Rafferty and Santtu Seppala met while connected to Yale University and later married on June 23, 2001, at the Roman Catholic Church of St. Mary in Greenwich, Connecticut. Their first daughter, Oona Gray Seppala, was born on October 22, 2007, approximately six years after their marriage. Rafferty’s acting career and Santtu’s work in finance meant their daughter grew up with connections to both the entertainment industry and the professional business world.
Oona Gray Seppala’s Parents at a Glance
| Parent | Profession | Best Known For |
|---|---|---|
| Sarah Rafferty | Actress | Donna Paulsen in Suits |
| Santtu Seppala | Finance/investment professional | Career in investment and business strategy |
Does Oona Gray Seppala Have Siblings?
Yes. Oona Gray Seppala has one younger sister, Iris Friday Seppälä, who was born on January 27, 2012, making the sisters a little more than four years apart in age. Sarah Rafferty has spoken warmly about her daughters’ relationship, and People has recalled her describing them as outgoing, funny and affectionate. Rafferty also discussed how Iris showed empathy toward her older sister when they were young. Both girls enjoyed singing and dancing during childhood, although those interests should not be interpreted as evidence of professional entertainment careers.
Oona Gray Seppala Family Timeline
The family history of Oona Gray Seppala is closely connected to Sarah Rafferty’s career on Suits, from Oona’s early childhood and time in Toronto to the show’s later streaming resurgence. The timeline below highlights the key publicly documented milestones involving Oona, her parents and her younger sister.
| Year | Family Milestone |
|---|---|
| 2001 | Sarah Rafferty and Santtu Seppala marry |
| 2007 | Oona Gray Seppala is born on October 22 |
| 2011 | Suits begins airing |
| 2012 | Iris Friday Seppälä is born |
| 2013 | Rafferty discusses Oona’s two-school Los Angeles–Toronto routine |
| 2016 | Rafferty discusses teaching Oona confidence and open communication |
| 2019 | Suits concludes after nine seasons |
| 2020 | Oona turns 13 |
| 2023 | Suits experiences a major streaming resurgence |
| 2024 | Rafferty discusses her daughters’ experiences on the Suits set |
| 2026 | Oona is 18 and continues to maintain a largely private public profile |
What Was Oona Gray Seppala’s Childhood Like?
Much of the reliable information about Oona Gray Seppala and her childhood comes from interviews with Sarah Rafferty. During Oona’s early years, the family divided its time between Los Angeles and Toronto while Rafferty filmed Suits. Rafferty told Redbook that keeping the family together was important, even when work required her to relocate temporarily to Canada. As a result, Oona attended two schools during part of her childhood. Rafferty initially worried about the arrangement but later described it as an experience that helped strengthen her daughter’s confidence and adaptability. Growing up between the two cities also meant Oona spent considerable time around television production and the behind-the-scenes environment of Suits.
Did Oona Gray Seppala Spend Time on the Suits Set?
Yes. Oona Gray Seppala spent considerable time around the Toronto production of Suits while her mother, Sarah Rafferty, filmed the series, although she was not documented as a professional cast member. Rafferty told Univision that her daughters enjoyed visiting craft services, spending time in the hair-and-makeup trailer, attending wardrobe fittings and seeing what happened behind the scenes. In a 2024 NewBeauty interview, Rafferty added that her daughters were frequently on set, sometimes called “action” and “cut,” and became close to members of the cast and their families. Despite being so familiar with the production, Rafferty said her daughters did not become regular viewers of the show. The experience gave Oona Gray Seppala an unusual behind-the-scenes connection to Suits, but spending time on a television set should not be confused with having a professional acting role.
What Did Oona and Iris Do on the Suits Set?
- Visited craft services
- Spent time in the hair-and-makeup trailer
- Attended wardrobe fittings
- Observed behind-the-scenes production
- Spent time with cast members and their families
- Occasionally called “action” and “cut,” according to Sarah Rafferty
Did Oona Gray Seppala Appear in Suits?
There is no reliable public evidence establishing Oona Gray Seppala as a professional cast member of Suits. Reputable profiles describe her presence around the production as a family member visiting the set rather than as an actress appearing in the series. People discusses her childhood visits to the production, while NewBeauty reports that she and her sister spent considerable time around the cast and crew. Neither source attributes a professional acting credit in Suits to Oona Gray Seppala, so describing her as a cast member would go beyond the available evidence.
| Question | Answer |
|---|---|
| Did Oona visit the Suits set? | Yes |
| Did she spend time around the cast? | Yes |
| Did she sometimes call “action” and “cut”? | Yes, according to Sarah Rafferty |
| Is she a documented Suits cast member? | No reliable evidence |
| Does she have an established professional acting career? | Not publicly established |
Where Did Oona Gray Seppala Go to School?
Reliable public information about the education of Oona Gray Seppala is limited. What is documented is that she attended two schools during part of her early childhood because her family divided its time between Los Angeles and Toronto while Sarah Rafferty filmed Suits. However, reputable public sources do not currently establish her university, degree program, major or future academic plans. Some celebrity-biography websites make specific claims about where she studies or what career she intends to pursue, but those details should not be treated as confirmed without stronger evidence. As of August 2026, Oona Gray Seppala is 18, but whether she is currently attending college, working or following another path has not been reliably established.
Is Oona Gray Seppala an Actress?
There is currently no strong public evidence showing that Oona Gray Seppala has established herself as a professional actress. Some celebrity-biography websites describe her as an actress, singer, dancer or emerging entertainer, but reputable sources do not provide professional credits supporting those descriptions. People primarily identifies her as Sarah Rafferty’s daughter, while IMDb lists her within Rafferty’s family information rather than documenting an independent acting career. Although her future career could change, as of August 2026 it would be inaccurate to describe Oona Gray Seppala as an established actress without reliable evidence of professional roles or credits.
Is Oona Gray Seppala a Singer or Dancer?
There is currently no reliable evidence that Oona Gray Seppala has established a professional career as a singer or dancer. Sarah Rafferty has said that Oona and her younger sister, Iris, enjoyed singing and dancing when they were children, and People has described the girls as outgoing, funny and affectionate. However, childhood interests should not be confused with professional accomplishments. No strong public source currently establishes Oona as a recording artist, professional dancer, signed performer or musician with a public discography.
Does Oona Gray Seppala Have Instagram or Social Media?
There is no widely established verified public social-media account that can confidently be identified as belonging to Oona Gray Seppala based on reputable mainstream reporting. Accounts using her name may exist, but a matching username alone does not confirm authenticity and could belong to a fan, impersonator or unrelated person. Sarah Rafferty does maintain a public social-media presence and has occasionally shared family photographs, which is why images of Oona have appeared in established entertainment coverage. People has credited several family photographs in its coverage to Rafferty’s Instagram account.
What Is Oona Gray Seppala’s Net Worth?
The personal net worth of Oona Gray Seppala has not been reliably established by credible public sources. Some celebrity-biography websites publish specific wealth estimates, but those figures should be treated cautiously when no verified earnings, assets or financial disclosures are available. The successful careers of Sarah Rafferty and Santtu Seppala do not automatically determine their daughter’s individual wealth, so assigning Oona a multimillion-dollar net worth without evidence would be misleading.
Oona Gray Seppala Net Worth Fact Check
| Claim | What We Can Verify |
|---|---|
| Oona has a specific multimillion-dollar fortune | Not established |
| Her mother has a long acting career | Yes |
| Her father has worked in finance | Yes |
| Her parents’ assets equal Oona’s personal net worth | No |
| Oona’s personal earnings are publicly disclosed | No reliable evidence |
| A reliable personal net-worth figure exists | No |
For an accurate biography, describing her personal net worth as not publicly established is more responsible than repeating an unsupported estimate.
Does Oona Gray Seppala Have Finnish Heritage?
Oona Gray Seppala has Finnish family heritage through her father, Santtu Seppala. USA Network has reported that Santtu’s family is from Finland, and Sarah Rafferty has also referred publicly to her husband’s Finnish background. The surname Seppala retains the Finnish letter ä, further reflecting the family’s Finnish roots. However, publicly available information does not establish Oona’s personal cultural identity, citizenship, languages or how closely she identifies with Finnish culture, so it is more accurate to describe her as having Finnish heritage through her father’s family rather than making broader assumptions.
Why Did Interest in Sarah Rafferty’s Family Increase Again?
Renewed interest in Oona Gray Seppala can be partly understood through the remarkable streaming resurgence of Suits. The series originally aired from 2011 to 2019 but reached a major new audience after becoming widely available on streaming platforms. According to Nielsen, Suits generated 57.7 billion viewing minutes in the United States during 2023 and spent 12 weeks at No. 1 on Nielsen’s U.S. streaming top 10. The renewed popularity of the series brought fresh attention to its cast and their families, helping explain why people continue searching for Sarah Rafferty, her husband, her daughters and Oona Gray Seppala even though Oona herself has maintained a largely private public profile.
Common related searches may include:
- Sarah Rafferty husband
- Sarah Rafferty children
- Sarah Rafferty daughters
- Oona Seppala
- Iris Friday Seppala
- Sarah Rafferty family
Why Is Oona Gray Seppala Famous?
Oona Gray Seppala is primarily known as the eldest daughter of actress Sarah Rafferty, who became widely recognized for portraying Donna Paulsen in Suits. Oona also attracts interest because she spent part of her childhood around the show’s Toronto production and regularly visited the set with her younger sister. However, that family connection should not be interpreted as evidence of an independent entertainment career. Based on currently available reputable reporting, Oona Gray Seppala is better described as the daughter of a public figure who has maintained a comparatively private life rather than as an established celebrity or professional actress in her own right.
Oona Gray Seppala: Verified Facts vs Online Claims
Researching Oona Gray Seppala reveals a significant difference between information supported by established sources and claims repeated by some celebrity-biography websites. People reports her birth date as October 22, 2007 and identifies her as Sarah Rafferty and Santtu Seppala’s eldest daughter, while Sarah Rafferty’s IMDb biography lists the same birth date. By contrast, claims assigning Oona Gray Seppala a different age, professional acting career, specific college, verified social-media account or personal net worth should not be treated as established facts unless reliable evidence supports them.
Oona Gray Seppala Fact Check
| Claim | What Stronger Sources Show |
|---|---|
| Oona was born in 2000 | Contradicted by stronger evidence |
| Oona was born on October 22, 2007 | Reported by People and supported by IMDb |
| Oona is 18 in August 2026 | Yes |
| Oona is currently a professional actress | Not reliably established |
| Oona acted professionally in Suits | No reliable professional credit found |
| Oona spent time around the Suits set | Yes |
| Oona has a younger sister named Iris | Yes |
| Sarah Rafferty is her mother | Yes |
| Santtu Seppala is her father | Yes |
| Oona has a confirmed personal net worth | No reliable figure established |
| Her current college is publicly confirmed | Not established by strong public sources |
People’s January 2026 profile is particularly useful because it identifies Oona as 18 and gives her birth date as October 22, 2007. Sarah Rafferty’s IMDb biography records the same birth date. These sources provide a stronger basis for basic biographical facts than websites that publish specific claims without clearly identifying where the information originated.
How Did Oona’s Parents Balance Fame and Family Life?
Sarah Rafferty has spoken publicly about trying to maintain a stable family life while balancing the demands of her acting career, providing useful context about Oona Gray Seppala and her upbringing. In Redbook, Rafferty described herself and Santtu Seppala as a team who worked to remain present for their children even while managing their own careers. Rather than spending long periods apart while Suits filmed in Toronto, the family often relocated together, and Rafferty also described using FaceTime to stay connected with her daughters while traveling. She has spoken about family trips to Vermont that included hiking and time away from their normal routines. These firsthand comments offer a more reliable picture of the family environment in which Oona Gray Seppala grew up than unsupported descriptions of her lifestyle found on celebrity-biography websites.
Where Is Oona Now?
As of August 2026, reputable public sources provide very little verified information about the current day-to-day life of Oona Gray Seppala. She is 18 and may be pursuing education, employment or other personal interests, but reliable reporting does not clearly establish her current college, career, residence, relationship status, income or professional plans. Her limited public profile should therefore not be filled with assumptions simply because she is the daughter of a well-known actress. Until Oona Gray Seppala, her family or a credible publication provides newer information, specific claims about what she is studying, where she lives or what career she intends to pursue are best treated as unconfirmed.
Oona and Sarah Rafferty’s Relationship
Sarah Rafferty’s public comments suggest that family connection and open communication have been important in her relationship with Oona Gray Seppala. When Oona was eight, Rafferty explained that she wanted her elder daughter to remain true to herself, feel confident and understand that she could speak openly with her parents. Years later, Rafferty told People that her life revolved around her children, reinforcing the importance she has publicly placed on motherhood. Because these comments come directly from Oona’s mother, they provide stronger evidence about the family dynamic surrounding Oona Gray Seppala than speculative accounts published without clear sourcing.
What Makes Oona Different From Many Celebrity Children?
One notable aspect of Oona Gray Seppala is the relatively limited amount of verified public information attached to her name despite growing up around a famous television actress and the internationally successful series Suits. She spent time around production sets, cast members and entertainment-industry professionals, yet reputable public sources do not currently establish professional acting credits, major entertainment projects or publicly promoted business ventures of her own. That distinction makes careful sourcing especially important when writing about Oona Gray Seppala: details that have not been reliably confirmed should remain unknown rather than being replaced with assumptions simply because she comes from a well-known family.
Conclusion
Oona Gray Seppala is notable less for building a public career of her own than for growing up alongside the success of one. As the eldest daughter of Sarah Rafferty and Santtu Seppala, she spent part of her childhood between Los Angeles and Toronto, experienced the Suits production environment firsthand and was raised around both entertainment and professional finance.
Yet proximity to fame has not translated into a clearly documented celebrity career. Reliable sources do not currently establish Oona as a professional actress, singer or public personality, and details about her education, relationships, finances and future career remain largely outside the public record.
That distinction is ultimately what defines the public story of Oona Gray Seppala in 2026. She is connected to a globally recognized television star, but the available evidence points to a young adult whose life remains substantially more private than the celebrity coverage surrounding her family. Until credible new information emerges, the most accurate biography is one built on verified facts rather than speculation.
FAQs About Oona Gray Seppala
1. What does the surname Oona Gray Seppala come from?
The surname Seppälä in Oona Gray Seppala is Finnish. It comes from seppä, meaning “smith,” combined with the Finnish suffix -lä.
2. Where was Oona Gray Seppala born?
Reliable sources strongly support her October 22, 2007 birth date, but the strongest public sources do not consistently establish Oona Gray Seppala’s birthplace. Unverified birthplace claims should therefore be treated cautiously.
3. How tall is Oona Gray Seppala?
There is currently no reliable public source establishing the official height of Oona Gray Seppala. Height figures on unsourced celebrity websites should not be treated as verified.
4. Has Oona Gray Seppala given any public interviews?
No widely documented interview with Oona Gray Seppala herself has been identified in reputable reporting. Most publicly available information about her childhood comes from interviews with Sarah Rafferty.
5. Does Oona Gray Seppala have a Wikipedia page?
As of August 2026, a dedicated English Wikipedia biography for Oona Gray Seppala was not identified during current research. That could change if more independently notable information becomes available.
6. Has Oona Gray Seppala appeared in My Life with the Walter Boys?
There is no reliable evidence that Oona Gray Seppala has a professional acting credit in My Life with the Walter Boys. Her connection to the series is through her mother, Sarah Rafferty.
7. Does Oona Gray Seppala work professionally with Sarah Rafferty?
No credible public reporting currently establishes a professional collaboration between Oona Gray Seppala and Sarah Rafferty. Their publicly documented connection is primarily their mother-daughter relationship.
8. Has Oona Gray Seppala launched a business or brand?
There is no reliable public evidence that Oona Gray Seppala has launched a company, commercial brand or publicly promoted business venture as of August 2026.
9. Has Oona Gray Seppala won any acting awards?
No established acting awards are publicly documented for Oona Gray Seppala. Reliable sources also do not currently establish a professional acting career under her name.
10. Has Oona Gray Seppala commented on the Suits streaming revival?
No widely reported public comments from Oona Gray Seppala about the streaming resurgence of Suits have been identified. Most information about her connection to the show comes through Sarah Rafferty.
The post Oona Gray Seppala: Age, Parents, Family, Biography & Facts in 2026 first appeared on Tycoonstory Media.
Source: Cosmo Politian
