Because you like Stephen Hawking in The Theory of Everything

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

Everyone is just a chess piece, and Izaya Orihara is a master player. See them in Durarara!!.

When you live your life in public, like Mima Kirigoe, it's hard to know who you really are. See them in Perfect Blue.

Jacob Black is the boy next door who's also the wolf next door. See them in Twilight.

Growing up isn't easy: Chihiro's parents turned into pigs, she's enslaved at a bathhouse for demons, and oh yeah, she's fading from existence. See them in Spirited Away.

Holden Caulfield is convinced that the whole adult world is full of phonies. See them in The Catcher in the Rye.

World domination and Superman's demise are next on Lex Luthor's to-do list. See them in DC Extended Universe.

Catherine Linton was once spontaneous and rowdy but ever since marrying the wealthy Edgar, she has morphed into a boiling pot of emotional outbursts. See them in Wuthering Heights.

Ellen Ripley defines the word "badass." When she's not leading her crew on an interstellar voyage, she's slaying terrifying creatures. See them in Alien.

Arthur Dent is an incredibly normal man on an incredibly abnormal adventure. See them in The Hitchhiker's Guide to the Galaxy.

A premier member of the leather cat-suit club, Selene can chill you with a stony look, or ice you with her ninja moves. See them in Underworld.

He might look like a pretty boy, but resourceful Leon Scott Kennedy is the man to have at your side during a crisis. See them in Resident Evil Series.