Basic Information
| Field | Details |
|---|---|
| Full Name | Oona Gray Seppala |
| Birth Date | October 22, 2007 |
| Birthplace | United States |
| Parents | Sarah Gray Rafferty (actress), Aleksanteri Olli-Pekka “Santtu” Seppälä (finance executive) |
| Siblings | Iris Friday Seppälä (born January 27, 2012) |
| Heritage | American with Finnish ancestry on her father’s side |
| Known For | Student journalism, community service, arts and athletics involvement |
| Early Residences | United States, with extended time in Los Angeles and Toronto during 2011–2019 |
| Public Presence | Low; private family approach with occasional appearances alongside her mother |
Early Life and a Bicoastal Childhood
Born on October 22, 2007, Oona Gray Seppala arrived at the intersection of art and analysis: her mother, an actress; her father, a financier. Her earliest years unfolded as her mother’s series Suits hit its stride (2011–2019), sending the family into a rhythm that alternated between Los Angeles and Toronto. For a young child, two cities meant two sets of friends, two school communities, and a steady stream of new experiences. It also meant visiting sets—craft services, hair and makeup trailers, wardrobe fittings—places where creativity hums like a power plant. Her mother has described that period as self-esteem building, an adventurous schooling that occurred both inside and outside the classroom.
By grade school, Oona gravitated toward singing and dancing. As she grew, those interests expanded to storytelling and leadership, the way a river widens as it nears the sea. Family anecdotes describe a child who is outgoing and funny, a big sister who would soon have a younger sibling shadowing her footsteps.
Family Ties and Influences
- Mother: Sarah Gray Rafferty (born December 6, 1972) is known for her quick-witted, steel-spined characters on television and in film. Raised in Connecticut as the youngest of four sisters, she came of age in a home where the arts and education were everyday staples—something she would later share with her daughters through books, conversation, and an insistence on authenticity.
- Father: Aleksanteri Olli-Pekka “Santtu” Seppälä, a finance executive of Finnish descent, brings a cosmopolitan stripe to the family story. Raised across multiple countries in Europe and the United States, he married Sarah on June 23, 2001, at St. Mary Church in Greenwich, Connecticut. His career in business strategy and development complements Sarah’s creative path, forming a steady foundation beneath their daughters.
- Sister: Iris Friday, born January 27, 2012, is Oona’s younger sibling and frequent companion. A warm family anecdote recalls a very young Iris comforting Oona by wiping away tears and offering a kiss—an early glimpse into the empathetic bond between the two.
- Grandparents and extended family: On the maternal side, Oona’s grandfather balanced a career in finance with oil painting, while her grandmother taught English at a private girls’ school—an academic and artistic pairing that echoes through Oona’s pursuits. Maternal aunts—Maura, Connie, and Ann—round out the close-knit circle. Paternally, Oona’s grandfather, Antti V. Seppala, worked as a pharmaceuticals consultant. This blend of professions and perspectives—finance, education, art, global business—has long patterned the family’s dinner table discussions.
Education, Interests, and Leadership
Oona’s education traces a steady arc through private schooling, with time spent in both Los Angeles and Toronto during her mother’s Suits years. As a teenager, she grew into leadership, especially through student journalism. She joined her school newspaper staff in 2022, became a senior reporter in 2023, advanced to a multimedia editor in 2024, and rose to editor-in-chief by 2025. The newsroom became her laboratory: she balanced opinion writing with reporting, sharpened multimedia storytelling, and guided peers through production cycles and deadlines.
Her interests reach beyond the newsroom. Oona founded a service initiative called Rhythms for Residents, a project name that hints at music and intergenerational connection. She also took the court with varsity tennis and blended voices as part of an a cappella group—evidence of a student life that values both discipline and harmony. On campus, she served in service-focused leadership, building the soft skills that rarely make headlines but always matter: listening, organizing, showing up.
In 2024 and 2025, her work in student media earned recognition in national student press lists, nods that reward clear reporting and thoughtful commentary. These milestones suggest a forward momentum: a young writer becoming a young editor, then a young organizer—an arc of increasing ownership and accountability.
Privacy, Public Appearances, and Online Footprint
For all the familiar surnames around her, Oona has grown up largely offstage. Her parents have drawn a careful boundary between public attention and private life. She surfaces in small ways: family snapshots, a birthday tribute here, a proud caption there. Beyond that, she keeps a low profile. In an era that often insists on a digital megaphone, her footprint is notably light. She is not a social-media fixture, and recent mentions typically connect to school achievements or family updates. There are no controversies, no public dramas, just the slow, steady work of growing up.
Timeline at a Glance
| Date | Milestone |
|---|---|
| October 22, 2007 | Born in the United States to Sarah Rafferty and Santtu Seppälä |
| 2011–2019 | Bicoastal childhood during Suits production, time in Los Angeles and Toronto |
| January 27, 2012 | Welcomes younger sister, Iris Friday |
| 2014 | Interests in singing and dancing noted by family |
| October 2020 | Turns 13; mother marks the milestone with a warm public birthday message |
| 2022 | Joins her school newspaper staff |
| 2023 | Promoted to senior reporter |
| 2024 | Becomes a multimedia editor; earns national student press recognition |
| 2025 | Serves as editor-in-chief; launches Rhythms for Residents; active in tennis, a cappella, and service leadership |
The Household Atmosphere
To understand Oona’s path, consider the household: books, scripts, and newsprint lived alongside spreadsheets and global business talk. One grandparent graded essays by day and cultivated literature by night; another mixed finance with oil painting. That blend—pragmatic and poetic—threads through Oona’s choices. She writes and edits with a clear, organized style. She serves others through a project that likely uses music to connect. She competes in tennis, an individual sport that prizes strategy, and sings in a cappella, where collaboration is everything. The picture is coherent: a student building both voice and teamwork, both poise and purpose.
A Note on Public and Private
Because she is still near the threshold of adulthood, there are no professional credits, no financial disclosures, and no grand pronouncements about the future. Her mother’s career and her father’s work suggest a comfortable family life, but the details remain appropriately private. The message is simple and sturdy: education first, character always, options open.
FAQ
Who is Oona Gray Seppala?
She is the elder daughter (born October 22, 2007) of actress Sarah Rafferty and finance executive Santtu Seppälä.
Where did Oona grow up?
She spent her childhood in the United States with extended periods in Los Angeles and Toronto during her mother’s Suits years.
Does Oona have siblings?
Yes, her younger sister is Iris Friday, born January 27, 2012.
What is Oona involved in at school?
She has been active in student journalism, community service, varsity tennis, and a cappella.
Has Oona held leadership roles?
Yes, she progressed from reporter to editor and served as editor-in-chief of her school newspaper by 2025.
Is Oona on social media?
She maintains a low profile, with minimal public social media presence.
What is “Rhythms for Residents”?
It’s a service initiative founded by Oona, likely blending music with community engagement.
Is she pursuing a professional career?
Not yet; her focus has been on education and extracurricular leadership.
What is her family’s heritage?
She is American, with Finnish ancestry on her father’s side.
Are there any public controversies associated with her?
No; her public profile is positive and centered on school and community activities.

