Guide to Recognizing Your Wallflowers: Charlie

CHARLIE IS... An introverted freshman looking to have a better time in high school after junior high led to a nervous breakdown.

CLASSIC QUOTE: "So, this is my life. And I want you to know that I am both happy and sad, and I'm still trying to figure out how that could be."
ACTOR: Logan Lerman

ACTOR'S AGE: 20

BEST KNOWN FOR: Lerman played the lead demigod in 2010's Percy Jackson & the Olympians: The Lightning Thief, and then a young Dartagnan in Three Musketeers 3D (complete with dubious hair extensions):

He's appeared on-screen with Russell Crowe, Christian Bale and Jim Carrey and has been acting since age 8, including an early role as a young Ashton Kutcher in The Butterfly Effect.

Before Percy, Lerman's best known character was as a future president in Greg Berlanti's TV series Jack & Bobby. The WB cancelled the show after one season, but it did introduce Lerman to his best friend, Dean Collins. Check out their YouTube channel monkeynuts1069 for exactly the kind of home-made horror and slapstick comedy videos you'd expect from a couple of teenage actors with too much time on their hands.

NEXT UP: Lerman's reprising his starring role in 2013's Percy Jackson: Sea of Monsters. He's currently filming Noah, a Darren Aronofsky film that will reunite Lerman and Emma Watson onscreen.