Mary-Kate Olsen

Mary-Kate Olsen, along with her twin sister Ashley, became one of the most famous child stars in entertainment history. The twins began sharing the role of Michelle Tanner on Full House when they were just nine months old, and the show ran from 1987 to 1995. From there, the Olsen twins built an entertainment empire that included dozens of films, TV specials, and a massive line of merchandise that generated over $1 billion in retail sales by the time they were teenagers.

The Olsen twins’ production company, Dualstar Entertainment, was a powerhouse that produced direct-to-video films like It Takes Two, Billboard Dad, and New York Minute. They also had their own clothing lines, fragrances, books, and video games. By age 18, they were already among the wealthiest young women in entertainment. Mary-Kate attended New York University, where she studied at the Gallatin School of Individualized Study.

In her adult life, Mary-Kate has pivoted entirely away from acting and into high fashion. She and Ashley co-founded The Row in 2006, a luxury fashion label that has become one of the most respected brands in the industry. The Row is known for its minimalist aesthetic, impeccable craftsmanship, and high price points. The brand has won multiple CFDA Awards, including Womenswear Designer of the Year. They also created the more accessible line Elizabeth and James.

As of 2026, Mary-Kate Olsen’s net worth is estimated at $250 million. The vast majority of her current wealth comes from The Row and her fashion business ventures rather than her acting career. She has maintained a notably private personal life, rarely appearing in public or on social media. Her marriage to Olivier Sarkozy ended in divorce in 2021.