Shia LaBeouf
Shia is often associated with craziness because of his many physical altercations as an adult. Likewise, he’s taken part in questionable films. Most people thought he would be the next big thing, but it never panned out.
Michelle Trachtenberg
You may remember Harriet the Spy becoming popular a while back, and the actress was Michelle. The nerdy brunette shed that appearance to help her score high-profile roles in Buffy the Vampire Slayer, Gossip Girl, 17 Again, and Mercy.