Because you like Gwen in Merlin

Brilliant, violent, and only a little insane, the Joker doesn't listen to anyone except the voices in his head. See them in DC Extended Universe.

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

Charming and enigmatic, Amy Dunne takes her love for puzzles to a cunning new level. See them in Gone Girl.

All it takes to change the course of history is the will of a single man called John Price. See them in Call of Duty Series.

Just a hint of human emotion lurks under the enigmatic exterior of Rei Ayanami. See them in Neon Genesis Evangelion.

Tyler Gage is going to have to step up soon on the dance floor. Otherwise, it's back to janitorial work. See them in Step Up.

If there's power in being average, Mikado Ryugamine will find it and use it. See them in Durarara!!.

Gruff and efficient, Sam Fisher protects a nation that can never admit he exists. See them in Tom Clancy's Splinter Cell.

Philip J. Fry accidentally cryogenically froze himself for a millennium. See them in Futurama.

Eren Jaeger will erase the Titans from this world until not a single one remains. See them in Attack on Titan.

Damon Salvatore used to miss being human. Now he can't think of anything more miserable. See them in The Vampire Diaries.

L is enigmatic, child-like, and one of the smartest people in the world. See them in Death Note.