Because you like Bellatrix Lestrange in Harry Potter Series

An underdog with nothing left to lose, Donnie Creed has everything to prove. See them in Creed.

Cher Horowitz may have a problem with hubris, but she looks utterly fabulous while learning a lesson about the dangers of meddling. See them in Clueless.

Percy Jackson is an ordinary student thrust into the world of myth come alive. See them in Percy Jackson & The Olympians: The Lightning Thief.

Eowyn isn’t allowed to fight, but then again, when have rules ever stopped her? See them in The Lord of the Rings.

It's certainly easier to get great footage of crimes when you can guarantee they'll happen. See them in Nightcrawler.

After being resurrected and discovering his new morphing abilities, Alex Mercer uses them to combat the virus now ravaging New York. See them in Prototype Series.

Major Marquis Warren is a talkative, sharp-eyed, and cold-hearted Civil War soldier-turned-bounty hunter. See them in The Hateful Eight.

Winston Bishop is sweet, thoughtful, and a little oblivious. And above, he's a loyal friend. See them in New Girl.

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

Jeff Winger thinks he's too cool for school, which is a problem because he just enrolled in community college. See them in Community.

Sheldon Cooper is brilliant in every way except, well, interacting with any human being. See them in The Big Bang Theory.

Tiffany Maxwell wishes people would stop reminding her about her dead husband. See them in Silver Linings Playbook.