Because you like Dolores Umbridge in Harry Potter Series

If this slick ad man doesn't like the conversation, he changes it—while drinking and smoking. See them in Mad Men.

Cosmo Kramer is an eccentric schemer whom you might know better as the "Assman." See them in Seinfeld.

His murderous megalomania aside, Loki is quite charming. Just don't mention his strapping older brother; he's a tad jealous. See them in Marvel Cinematic Universe.

Lorelai Gilmore loves coffee, talking fast, flirting, movie marathons, and her daughter. See them in Gilmore Girls.

Alison DiLaurentis believes you're always better off with a really good lie. See them in Pretty Little Liars.

Did he ever tell you the definition of insanity? Just wait, and this psychopath will do just that. See them in Far Cry 3.

An aristocrat-turned-tomb-raider, Lara Croft does her best thinking while plunging off cliffs. See them in Lara Croft: Tomb Raider.

Imperator Furiosa is a badass patriarchy toppler. She'll do anything to secure a better, freer future for the women she cares for. See them in Mad Max: Fury Road.

Fiona Gallagher wants to be able to give her siblings everything that they deserve because her parents aren't going to do it. See them in Shameless.

As the unit chief of the FBI's Behavioral Analysis Unit, Aaron Hotchner is dead serious about avenging dead people. See them in Criminal Minds.

Veronica Mars is a sarcastic private eye whose biggest mission is surviving high school. See them in Veronica Mars.

Dev Shah is a technology-obsessed New Yorker balancing struggles in his love life and career. Maybe you've seen his Go-Gurt commercial. See them in Master of None.