Because you like Marla Singer in Fight Club

Artemis Fowl understands the way of the world. If he wins, he's a prodigy. If he loses, then he's crazy. That is how history is written. See them in Artemis Fowl.

Leonard "Bones" McCoy is passionate, moral, and ready to stitch you back together. See them in Star Trek.

She's mostly doom and gloom, but you'd get nowhere without Sadness. See them in Inside Out.

Years of being the less desirable Vargas sibling have given Romano quite an inferiority complex, as well as the temper to match. See them in Axis Powers Hetalia.

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

It doesn't matter how noble or brave he is. Jon Snow is a bastard, and people don't let him forget it. See them in Game of Thrones.

The son of Death has an obsession with perfection and symmetry. See them in Soul Eater.

Make sure not to anger the Hulk or else he will transform into a giant green monstrosity and smash anything in his way. See them in Marvel Cinematic Universe.

A contemptuous aristocrat, Violet Crawley is unafraid to exert her authority and voice her opinions, no matter how harsh they are. See them in Downton Abbey.

A great galactic bounty hunter, Samus Aran is not as good at expressing emotions. See them in Metroid.

Altair Ibn-La'Ahad is as much a philosopher and detective as he is a killer. He takes nothing at face value and continually searches for deeper truths. See them in Assassin's Creed Series.