John Francis Daley
The adorkable John Francis Daley made his TV debut in 1999, as Sam Weir on Freaks and Geeks alongside the likes of James Franco, Seth Rogen, and Jason Segel. The show lasted just one season but became a cult classic. He nailed nerdy charm back then, just as he does now as Dr. Lance Sweets on Bones. The years have been very kind to him.