Because you like Khan Noonien Singh in Star Trek Into Darkness

Clary Fray's philosophy: dive into the supernatural underworld first and ask questions later. See them in City of Bones.

John Tyree has survived heavy gunfire and aggressive enemy soldiers. But can he handle a girl? See them in Dear John.

An aloof punk rock goddess, Nana Osaki has a surprisingly big heart. See them in Nana.

With the loyalty and pluckiness of a puppy, Nana Komatsu is a hopeless romantic. See them in Nana.

A photographic memory is just one of many skills Lexie Grey brings to the table as a surgeon. See them in Grey's Anatomy.

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

A crabby troll, Karkat Vantas is perpetually angry about his lot in life. See them in Homestuck.

Insightful about everyone else's neuroses, Rose Lalonde is not as aware of her own. See them in Homestuck.

Humble, caring, and protective, Scott McCall tries to make the best of his newfound status as a werewolf. See them in Teen Wolf.

Whether it's randomly bursting into song or writing Nancy Drew fan-fiction, Jess proudly marches to the beat of her own drum. See them in New Girl.

Veronica Sawyer thinks that if you were happy every day of your life you wouldn't be a human being, you'd be a game-show host. See them in Heathers.

Jenna Rink is physically 30 but emotionally 13. She has a better excuse than most. See them in 13 Going on 30.