We're ending our list with a pair of names that almost everybody knows; Ashley and Mary-Kate, the Olsen Twins. While the public is very familiar with their faces, and expect them to be rich because of their acting fame, we expect most readers will be surprised to find out that they're now worth more than a billion dollars. Even more surprisingly, their staggering worth has nothing to do with their acting or their media profiles.
The Olsens took a step back from public life a few years ago to focus on their fashion label, and it's that which has made them more money than anything else. It's been turning over more than a billion dollars per year in revenue for the past four years, but only recently has been ascribed with a value of more than a billion dollars in the past year. As the Olsens own it, that money is theirs. Not bad for a couple of child stars from 'Full House.'