Wil Wheaton is an American actor, writer, and producer best known for his roles in the films Stand by Me and Toy Soldiers, and for his portrayal of Wesley Crusher on the television series Star Trek: The Next Generation. He is also well-known for his work as a voice actor in video games and animated series. Wheaton has also written several books, including Just a Geek and The Happiest Days of Our Lives. He is an advocate for online privacy and free speech, and is an active participant in the open source software movement.