Because you like Louisa Clark in Me Before You

Konata Izumi has a live-now, worry-later view of the world. See them in Lucky Star.

Wei Shen is an undercover cop on a mission for justice (or at least vengeance). See them in Sleeping Dogs.

Reclusive, quiet, and seemingly emotionless, Lain Iwakura feels like an outsider in her hyper-connected world. See them in Serial Experiments Lain.

The only defense Earth has against alien invaders are giant robots in the hands of pilots like Kaworu. See them in Neon Genesis Evangelion.

Violet Harmon takes teen angst to a paranormal level. See them in American Horror Story.

Sephiroth wants nothing more than to seize the power of the Lifestream in order to become a god. See them in Final Fantasy Series.

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

GLaDOS will supply the food when you get together: a delicious cake. Of course, it could just be a trap so she can kill you. It’s hard to say. See them in Portal Series.

He's the great Black Star, and he's come to assassinate you. See them in Soul Eater.

This power-hungry Time Lord calls himself the "master of all." Bonus: he has 13 lives. See them in Doctor Who.