Hollywood has a bit of a Peter Pan complex sometimes never wanting its child actors to grow up. But grow up they must as people do.
Occasionally, the actors and actresses we love as children make the transition to adult stars ... sometimes making a pit stop as amateur porn stars ... before going on to transition successfully into adult actors known for more than just their childhood roles.
Sometimes those transitions are less successful and we spend their infamous adulthoods wondering what happened?
(Drugs and alcohol happened, that's what. Looking at you, Lindsay Lohan.)
Others, like second-time mama Drew Barrymore, go through seriously rough growing pains and emerge on the other side bigger and better than anyone could have imagined. Maybe there's hope for LiLo yet.
And then there's Leonardo DiCaprio who just gets better and better with age. Seriously. He's a fine wine.
Take a look at these 21 child actors who grew up and stayed famous. Or infamous.