Mary-Kate and Ashley Olsen – Full House

It seems that twins Mary-Kate and Ashley Olsen were everywhere in the ’90s and ’00s. Of course, they first became famous on one of the biggest sitcoms of all time, Full House. However, after Full House ended, the child stars managed to keep it going by creating a line of films starring themselves, all under a production company they formed, Dualstar. That’s right! The Olsens have been business moguls from the very beginning.

Since turning into adults, the Olsen twins have been focusing on their successful luxury fashion brand, The Row. Most recently, they won Womenswear Designer of the Year twice for The Row, in both 2012 and 2015. When you start working as a child, you can get a lot done by 34.