2. Olsen Twins
Mary-Kate and Ashley were arguably the biggest child stars in the history of US television and movies and they actually managed to keep things rolling for a while. When Full House ended (their first gig), they kept the ball rolling with incessant teen-movies, albums of “music” and a whole range of products for little girls all over the world. It is actually estimated that the Olsen twins are worth at least $300 million.
The hurdle that the Olsen twins somehow didn’t manage to make was getting older. As soon as they lost their kid and teen appeal, they just disappeared from the TV screens, movies, etc. Sure, if you follow fashion and happen to spend your nights attending fashion shows around the world, you might see the girls somewhere in the front row being all pouty and serious.
But the days of real fame and celebrity are pretty much behind Ashley and Mary-Kate.