What child actors that have grown up to be successful adult actors do you enjoy? Do you have any actors that you've seen their entire filmography from child to adult?

I recently started watching the old comedy series 3rd Rock from the Sun and remembered that Joseph Gordon Levitt was in it. I think it is funny that someone who is so popular now (and regarded as a sex symbol) has been around for so long. He's been around in television and movies since he was a little kid. He's been working his entire life in the industry. He's probably my favorite actor who has made this leap from child to adult actor seamlessly.

Also? I totally crush on Neil Patrick Harris so he gets a mention from me here too.