Because you like Egon Spengler in Ghostbusters

Alison DiLaurentis believes you're always better off with a really good lie. See them in Pretty Little Liars.

This high school queen bee has everything, including a genius-level IQ—a fact Lydia Martin keeps hidden to maintain her image. See them in Teen Wolf.

A gruff and hardened professional, Marcus Fenix keeps his emotions buried deep. See them in Gears of War.

Eragon is one part brave but three parts fool. See them in Eragon.

Christopher Turk is bringing his A-game to his next big challenge: becoming a surgeon. See them in Scrubs.

Formerly a "sweater-set-wearing, mojito-drinking sorority girl", Paige Collins is now a successful sculptor with slight memory loss. See them in The Vow.

Cinder has been beaten down by the world, but she's learning that her cyborg abilities are pretty helpful. See them in Cinder .

The quiet, intense Daryl Dixon lets his crossbow do the talking. See them in The Walking Dead.

Sam Roth is sensitive, musically gifted, and scarred by his past. See them in Shiver .

Smart, sarcastic, and loyal, Stiles Stilinski doesn't just want to be the sidekick in someone else's life. See them in Teen Wolf.

Cutting ties with her con-artist friends, Sarah Manning is creating a better life for her daughter by taking on the identity of the deceased Beth. See them in Orphan Black.

A master manipulator, Frank Underwood has a tight grip on Washington DC. Plus who doesn't like having a leader who frequently tosses off Shakespearean asides? See them in House of Cards.