Most Successful Child Stars

Mary-Kate and Ashley also have an older brother, Trent - who also appeared in a handful of "The Adventure" films - and a pair of half-siblings, Taylor and Jake. While Ashley Olsen doesn't appear to have any upcoming acting projects on the horizon, Mary-Kate is set to star in Daniel Barnz's "Beastly" as well as Laurie Collyer's "Story of a Girl" alongside Kevin Bacon and Kyra Sedgwick.

We've all heard the child star horror stories: parents stealing all their earnings, criminal charges, and rehab stints. Or more often than not they simply fade into obscurity. But occasionally these show biz kids are able to make the transition into adulthood and become Hollywood powerhouses. Click ahead to see some of the most successful former child stars working today.