Oona Gray Seppälä is best known as the eldest daughter of actress Sarah Rafferty, who gained international fame for her role as Donna Paulsen on Suits. Born into a loving and accomplished family, Oona has spent much of her life away from the media spotlight despite her mother’s celebrity status. Her upbringing reflects a balance of Hollywood glamour and genuine family warmth.
Raised alongside her younger sister, Iris Friday Seppälä, Oona’s life has been shaped by creativity, compassion, and education. The Rafferty-Seppälä household is known for its strong family values, encouraging both daughters to pursue their interests freely while staying grounded in humility.
Quick Bio
| Attribute | Details |
|---|---|
| Full Name | Oona Gray Seppälä |
| Known For | Daughter of actress Sarah Rafferty |
| Date of Birth | October 22, 2007 |
| Age (as of 2025) | 18 years old |
| Birthplace | United States |
| Nationality | American |
| Parents | Sarah Rafferty, Santtu Seppälä |
| Siblings | Iris Friday Seppälä |
| Zodiac Sign | Libra |
| Residence | Connecticut, USA |
| Relationship Status | Single |
| Profession | Student |

Early Life and Family Background
Oona Gray Seppälä was born on October 22, 2007, in the United States, to actress Sarah Rafferty and her husband, stock analyst Santtu Seppälä. Her early years were spent surrounded by love and stability, which set the tone for her well-rounded upbringing. Despite her mother’s rising fame during that time, the family made it a priority to create a nurturing environment far from Hollywood’s constant buzz.
The Seppälä family values education and kindness, ensuring that Oona and her sister were raised with a sense of gratitude and empathy. This early balance between privacy and exposure helped Oona develop a personality that reflects both independence and warmth, traits admired by fans of her mother.
The Influence of Sarah Rafferty as a Mother
Sarah Rafferty’s influence as a mother has played a significant role in shaping Oona’s personality. Known for her intelligence, poise, and compassion, Sarah has always emphasized the importance of authenticity and education. Even while managing a busy career, she has remained an active presence in her daughters’ lives, attending school events and maintaining family traditions.
Sarah has often spoken about the importance of raising her daughters in a grounded environment despite her Hollywood success. She strives to teach Oona and Iris that fame is temporary but character lasts forever. Her parenting style reflects balance encouraging ambition while prioritizing empathy and understanding.
Oona’s Bond with Her Father, Santtu Seppälä
Oona shares a strong bond with her father, Aleksanteri “Santtu” Seppälä, a respected business professional with a background in finance. Santtu, known for his calm and private nature, brings stability to the family dynamic. He has always been described as a hands-on father who supports his daughters’ education and emotional well-being.
Despite leading a career outside of entertainment, Santtu’s values align closely with Sarah’s. Together, they have built a home centered on family unity and mutual respect. Oona’s relationship with her father reflects warmth and trust—a foundation that continues to guide her as she grows into adulthood.

Growing Up as the Daughter of a Suits Star
Growing up as Sarah Rafferty’s daughter naturally brought attention to Oona, especially during the peak of Suits’ success. However, Sarah and Santtu were intentional about keeping their children out of the media spotlight. Oona’s childhood, therefore, was relatively private, allowing her to enjoy normal experiences like school activities, friendships, and hobbies.
Occasional public appearances with her mother revealed a confident and kind young girl, but beyond that, Oona’s life remained mostly hidden from paparazzi. This decision by her parents ensured that she developed a sense of self not defined by fame but by her own values and aspirations.
Education and Personal Interests
Education has always been a top priority in the Seppälä household. Oona attends a private school known for its strong emphasis on academics and arts. Her mother’s background in literature and performance has inspired her love for reading and creative expression. It is believed that Oona enjoys subjects like English, history, and music.
Apart from academics, Oona reportedly takes an interest in sports, photography, and volunteering. She has often been described as curious and empathetic—someone who enjoys learning about the world and helping others. Her well-rounded upbringing mirrors her parents’ belief in fostering intellect and kindness equally.
Relationship with Sister Iris Friday Seppälä
Oona Gray Seppälä shares a close and affectionate relationship with her younger sister, Iris Friday Seppälä. The two are often seen together at family events and vacations, highlighting their strong sibling bond. As the elder sister, Oona has always been protective and caring toward Iris.
Their bond goes beyond sisterhood they’re best friends who support each other through all stages of life. Both share interests in the arts, creativity, and social causes, a reflection of their parents’ nurturing influence. Together, they represent the close-knit and loving heart of the Rafferty-Seppälä family.
Balancing Privacy and Public Attention
Despite being the daughter of a well-known celebrity, Oona Gray Seppälä has managed to maintain a private lifestyle. Her parents have made conscious efforts to protect her from the pressures of public life, avoiding overexposure on social media and in the press. This privacy has allowed her to grow up naturally without the typical scrutiny faced by celebrity children.
Oona’s rare public appearances are usually family-oriented, such as charity events or premieres where her mother is honored. Fans admire how the Rafferty family values privacy over publicity, ensuring their children lead balanced and secure lives.
Family Values That Shape Oona’s Personality
The Rafferty-Seppälä family is grounded in compassion, education, and cultural awareness. Sarah and Santtu emphasize respect, empathy, and responsibility as central values in their home. These principles have helped shape Oona into a thoughtful, polite, and self-assured young woman.
Growing up in such an environment, Oona has learned the importance of kindness and individuality. She often mirrors her parents’ calm demeanor and intelligence, which suggests she is on a path to becoming a confident and balanced adult.
Oona Gray Seppälä’s Age, Appearance, and Personality Traits
As of 2025, Oona Gray Seppälä is 18 years old. She has inherited her mother’s striking features—bright eyes, a warm smile, and natural red hair that often draws comparisons to Sarah Rafferty’s iconic look. Her style reflects elegance and simplicity, favoring comfort and authenticity over glamor.
Personality-wise, Oona is known for her kindness, curiosity, and poise. Friends describe her as introspective and articulate, someone who values deep conversations and creative expression. These traits make her not only Sarah Rafferty’s daughter but also an individual with her own distinct charm.
The Rafferty-Seppälä Family Legacy
The Rafferty-Seppälä family legacy extends beyond fame. It represents balance, humility, and togetherness. Sarah Rafferty’s successful career and Santtu Seppälä’s financial expertise have created a strong family foundation that values both achievement and integrity.
For Oona, this legacy is not about living in her mother’s shadow but about learning from it. She represents the next generation of the family’s values intellect, empathy, and quiet confidence. Her life serves as an example of how celebrity children can grow up gracefully under public interest.
Future Outlook for Oona Gray Seppälä
As Oona approaches adulthood, many wonder what path she will take. While she hasn’t shown interest in acting publicly, her creative background suggests she may explore the arts or academic pursuits. Whether she chooses to follow in her mother’s footsteps or carve her own path, her foundation of values will guide her journey.
Given her balanced upbringing, Oona’s future looks bright. She is likely to continue living a grounded and meaningful life, whether in the creative industry, academics, or philanthropy. Fans of Sarah Rafferty are eager to see how Oona’s story unfolds in the coming years.
Conclusion
Oona Gray Seppälä’s story is one of grace, privacy, and potential. As the daughter of one of television’s most beloved actresses, she could have easily grown up under the constant gaze of fame. Instead, her parents chose to give her a life defined by education, creativity, and compassion.
Her journey so far reflects the success of that choice. Oona stands as a symbol of a new generation of celebrity children—those who prefer authenticity over attention. With a supportive family and a grounded outlook, she is poised to make her mark in her own unique way.
FAQs
Who is Oona Gray Seppälä?
Oona Gray Seppälä is the eldest daughter of American actress Sarah Rafferty and her husband, Santtu Seppälä. She is known for maintaining a private life despite her mother’s fame.
How old is Oona Gray Seppälä?
She was born on October 22, 2007, which makes her 18 years old as of 2025.
Does Oona Gray Seppälä have any siblings?
Yes, she has a younger sister named Iris Friday Seppälä, with whom she shares a close bond.
What are Oona Gray Seppälä’s interests?
While little is publicly known, Oona reportedly enjoys reading, art, and creative learning. Her upbringing emphasizes both intellect and kindness.
Is Oona Gray Seppälä active on social media?
No, Oona does not maintain public social media accounts, as her family prefers to keep their private life away from online attention.
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