Just like her twin sister Ashley Olsen, Mary Kate Olsen has also made a name in the acting industry. She has an estimated net worth of $150 million. Apart from being an actress, Mary Kate Olsen is also a producer, author, businesswoman and a fashion designer. She is one of the founders of The Row, a luxury fashion brand, and Olsenboye which is an affordable fashion line. Like her sister, Mary Kate pursued an acting career as an adult only until 2012.

The Olsen sisters started their acting career at the age of 9 months, and during the early 90s, they have established their own company, Dualstar. Her most notable appearances on films and TV include It Takes Two, So Little Time, The Wackness, Two Of A Kind, Full House, Factory Girl, Beastly, and Samantha Who?. To focus on their fashion career, the Olsen sisters decided to give up their acting career, and Mary Kate has expressed her intentions of opening a fashion shop soon.