Stephanie Szostak was born on June 12, 1975, in Paris, France. She is a French-American actress and author best known for her roles in The Devil Wears Prada, Iron Man 3, and the ABC drama series A Million Little Things.
Who is Stephanie Szostak?
Stephanie Szostak is a French-American actress who has built a career spanning Hollywood films and major US network television. She is best known for playing Delilah Dixon in the ABC drama series A Million Little Things.
She grew up a competitive golfer before discovering acting in her late twenties.
Before acting, Szostak worked in marketing at Chanel in New York City after graduating college. That path changed after she took an acting class and found herself drawn away from the corporate world entirely.
She is also a published author, a public speaker, and an ambassador for the nonprofit Give an Hour.
Early Life of Stephanie Szostak
Stephanie Szostak was born and raised in the suburbs of Paris, France. As a teenager, she competed in golf tournaments throughout France, aiming for a professional career in the sport.
Golf remained her focus when she moved to the United States for college.
She relocated to Virginia to attend the College of William and Mary, where she played on the women’s varsity golf team. Her time there shifted her priorities from sport to business, and eventually to the arts.
Stephanie Szostak Age
Stephanie Szostak is 51 years old as of July 2026, born on June 12, 1975. Her zodiac sign is Gemini.
She appeared in Soul on Fire, released theatrically in October 2025, bringing her most recent film role to audiences just months ago.
Stephanie Szostak Ethnicity and Nationality
Stephanie Szostak holds both French and American nationality. She was born in France and grew up in the Paris suburbs before moving to the United States for her college education.
Her surname, Szostak, is Polish and comes from her husband’s family name.
Stephanie Szostak Height and Weight
Stephanie Szostak stands at 5 feet 6 inches, or approximately 1.68 meters.
Her weight has not been publicly confirmed.
She maintained a fit, athletic build throughout her competitive golf years, and that physicality has continued to serve her across both film and television roles.
Stephanie Szostak Education
Szostak earned a Bachelor of Science in Marketing from the College of William and Mary in Williamsburg, Virginia.
She joined the women’s varsity golf team there and played at a competitive level.
After graduating, she moved to New York City and joined the marketing department at Chanel. It was during that time that she began taking acting classes, a decision that redirected her entire career.
Stephanie Szostak Career
Breakthrough Role
Szostak made her breakthrough in the 2006 comedy The Devil Wears Prada, playing Jacqueline Follet, a rival editor to Meryl Streep’s Miranda Priestly.
That role opened the door to consistent film and television work.
After The Devil Wears Prada, she appeared in guest roles on The Sopranos and Law and Order: Criminal Intent before landing bigger parts in studio films.
Notable Films
Szostak starred opposite Paul Rudd in Dinner for Schmucks in 2010, then appeared in We Bought a Zoo alongside Matt Damon in 2011. In 2013, she had roles in two major comic book adaptations: Iron Man 3, playing Pepper Potts’s friend, and R.I.P.D..
Her film credits also include The Rebound (2009), The Good Heart (2009), and Gimme Shelter (2013).
New York Times critic Stephen Holden described her as a “smoldering star” following her performance in the 2006 film Satellite.
Television Career
Szostak stepped into a lead television role in 2014 with the USA Network drama Satisfaction, where she played Grace Truman across the show’s two seasons. In 2018, she landed the recurring role of Delilah Dixon in A Million Little Things on ABC, a drama series about a group of friends dealing with loss.
She also appeared as Nora Conte in the Peacock crime drama The Calling in 2022.
Recent Work
In 2025, Szostak starred in Soul on Fire, a biographical faith-based drama released by Sony Pictures’ Affirm Films on October 10, 2025. She played Susan O’Leary, the mother of burn-survivor-turned-motivational-speaker John O’Leary, alongside William H. Macy and John Corbett.
The film grossed $7.4 million during its US theatrical run.
It moved to Netflix on January 8, 2026, extending its audience significantly beyond its theatrical release.
Stephanie Szostak Filmography
- Satellite (2004)
- The Devil Wears Prada (2006) as Jacqueline Follet
- The Rebound (2009)
- The Good Heart (2009)
- Dinner for Schmucks (2010)
- We Bought a Zoo (2011)
- Iron Man 3 (2013)
- R.I.P.D. (2013)
- Gimme Shelter (2013)
- Hit by Lightning (2014)
- Satisfaction (USA Network, 2014-2015) as Grace Truman
- Girlfriends’ Guide to Divorce (guest)
- Younger (guest)
- Bull (guest)
- The Blacklist (guest)
- A Million Little Things (ABC, 2018-2023) as Delilah Dixon
- The Calling (Peacock, 2022) as Nora Conte
- Soul on Fire (2025) as Susan O’Leary
Stephanie Szostak Husband
Stephanie Szostak married Britt Szostak in 1996, after three years together. Her surname comes from him, and its Polish origin explains the pronunciation, “Show-stack.”
The couple resides outside New York City.
Together they have two sons, born in 2003 and 2007.
Stephanie Szostak Children
Stephanie and Britt Szostak have two sons.
Their sons were born in 2003 and 2007, and the family lives outside New York City.
Szostak has spoken publicly about balancing her acting career with raising her family, and her book addresses the mindset challenges she navigated as her career gained momentum.
Stephanie Szostak Net Worth
Stephanie Szostak’s estimated net worth is $3 million as of 2026.
Her income comes from her film and television career, her published book, and her work as a public speaker and brand ambassador.
Her longest single project, A Million Little Things, ran for five seasons on ABC from 2018 to 2023. That multi-year lead role, combined with her film work and speaking engagements, forms the foundation of her career earnings.
Stephanie Szostak Social Media
Szostak maintains a presence on Instagram, where she posts about her projects, her book, and her speaking work.
Her Instagram account, @szostakstephanie, features updates tied to her public work rather than personal content.
She does not maintain a verified public presence on TikTok or YouTube as of 2026.
Frequently Asked Questions
What is Stephanie Szostak’s net worth?
Stephanie Szostak’s estimated net worth is $3 million as of 2026.
How old is Stephanie Szostak?
Stephanie Szostak is 51 years old, born on June 12, 1975.
Who is Stephanie Szostak married to?
She is married to Britt Szostak, whom she wed in 1996. They have two sons together.
What is Stephanie Szostak’s height?
She stands at 5 feet 6 inches (1.68 meters).
What movies and TV shows has Stephanie Szostak been in?
She is best known for The Devil Wears Prada (2006), Iron Man 3 (2013), A Million Little Things (ABC, 2018-2023), and Soul on Fire (2025).
Where was Stephanie Szostak born?
Stephanie Szostak was born in Paris, France.
The Bottom Line
Stephanie Szostak landed her breakthrough role in The Devil Wears Prada in 2006 opposite Meryl Streep, after switching from a Chanel marketing career to acting classes in New York City. She followed that with roles in Iron Man 3 and five seasons as Delilah Dixon on ABC’s A Million Little Things.
She grew up a competitive golfer in France before moving to the United States to study business at the College of William and Mary, a background that sits well outside the typical acting pipeline. Her book, Self!sh, addresses the Impostor Syndrome she battled as her career grew, and she now speaks publicly on that theme as a Give an Hour ambassador.
Her most recent film, Soul on Fire, opened in theaters on October 10, 2025, and began streaming on Netflix on January 8, 2026. With both a published book and an active speaking career alongside her acting work, her output has expanded well beyond the screen.
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