» more from Slideshows

Wil Wheaton

Best known as: Gordie Lachance in the 1986 film "Stand By Me."

What he’s been up to since then: In his 20s, Wil also became well-known as Wesley Crusher on the TV series "Star Trek: The Next Generation." Now 39, Wil is a writer of numerous books, such as "Just a Geek." He’s also a generally popular guy on the Internet, with his personal blog and his participation on forums such as Reddit and Slashdot.

You can still catch him in: Wil plays Dr. Isaac Parrish in the TV series "Eureka," and his voiceover work includes Robin in the "DC Universe Online" video game.

youtube.com FilmMagic | Getty Images