Because you like Gilderoy Lockhart in Harry Potter Series

Roger is a pansexual alcoholic non-human who will happily lie, cheat and steal to get what he wants. See them in American Dad!.

Joe Goldberg works at a local bookstore and charms most girls sock's off. He is also a serial killer, but no one is perfect! See them in You.

Nadia Vulvokov is a no-nonsense broad with a dark sense of humor and a flippant attitude. See them in Russian Doll.

Chloe Decker's case should be open-and-shut. But something seems to be troubling her, something about Palmetto Street. See them in Lucifer.

Hanna Marin is a determined girl defined by her ability to transform herself. See them in Pretty Little Liars.

Michelle Richardson's world revolves around her boyfriend. Alas, his world doesn't revolve around her. See them in Skins.

Robbie Turner has been accused of a crime he never committed, changing the course of his life forever. See them in Atonement.

Alien insists on taking the party with him wherever he goes. And if you're lucky, you'll get to see his gun collection. See them in Spring Breakers.

Lady Macbeth takes being a powerful woman to a whole other level. See them in Macbeth.

A brilliant "extractor," Dom Cobb has spent the past few years running from the authorities and his inner demons. See them in Inception.

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.