Because you like Nate Archibald in Gossip Girl

Lyra Belacqua is prone to getting in trouble, but she's also clever enough to get out of it. Most of the time. See them in The Golden Compass.

Jack Frost would rather crack a joke or throw a snowball than take anything seriously. See them in Rise of the Guardians.

Sylar's victims are found all over the country, many with their brains removed. See them in Heroes.

Introspective Theodore Twombly would rather observe life than participate in it. See them in Her.

The vampire that killed Zero Kiryu's family also infected him, and he starts to crave blood, much to his horror. See them in Vampire Knight.

Whether he's fighting or flirting, Jace Wayland is all swagger. See them in City of Bones.

An intriguing bundle of contradictions, Sawyer Ford trusts no one on the island, and no one should trust him. See them in Lost.

Donkey Kong is a strong, banana-loving, and caring uncle to Diddy Kong. See them in Donkey Kong.

Mario is a plumber who wears a ridiculous outfit, eats weird looking mushrooms, and fits himself inside your pipes so he can save a princess. See them in Super Mario Bros..

This mathematical genius doesn't have time for small talk; Alan Turing needs to break Enigma, the Nazi's cipher machine. See them in The Imitation Game.

Rory Williams is a caring companion whose specialty is looking after others. See them in Doctor Who.

It's time somebody has to take over. It might as well be Fish Mooney. See them in Gotham.