Because you like Stan Marsh in South Park

Jack Skellington is a nightmare-man with a soft heart and smooth voice. See them in The Nightmare Before Christmas.

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

Count Olaf is a traveling actor, except he can't act and his homicidal tendencies make finding work pretty difficult. See them in Lemony Snicket's A Series of Unfortunate Events.

Scar is sneaky, snarky, and always striving for more power. See them in The Lion King.

Gilderoy Lockhart's biggest idol is himself. See them in Harry Potter Series.

Needles Kane says shut up and bleed. See them in Twisted Metal .

Amy Farrah Fowler deserves sainthood for putting up with Sheldon Cooper. See them in The Big Bang Theory.

Vanellope von Schweetz is princess of the Sugar Rush game who could care less about being royal. See them in Wreck it Ralph.

Angela Martin is uptight and puritanical, outside of the affair she's having with a co-worker. See them in The Office.

Galina Reznikov is the head chef of prison, cooking up meals as well as storms on anyone who dares to cross her; even the guards are terrified of her. See them in Orange Is The New Black.

Princess Bubblegum is brilliant and determined, but can display a nasty temper. See them in Adventure Time.

Thanos is an intergalactic warlord, on the hunt for infinite power. See them in Marvel Cinematic Universe.