Because you like Sylar in Heroes
Harrison Wells is a brilliant scientist full of secrets. See them in DC Extended Universe.
Norma Bates may look like a harmless housewife, but don't let that fool you. See them in Bates Motel.
A cruel pirate, Captain Hook still fancies himself a gentleman. See them in Peter Pan.
Although Mako Mori may be small and quiet, she is a core of battle-hardened steel. See them in Pacific Rim.
All who live know his name, and all who oppose him shall know Death. See them in Darksiders Series.
It's time somebody has to take over. It might as well be Fish Mooney. See them in Gotham.
Keren Walker is a socialite looking to avoid work, keep a constant buzz, and be as snarky as possible. See them in Will & Grace.
Ava may just be the perfect woman. So long as she can pass a Turing test. See them in Ex Machina.
Sarah Kerrigan is pretty much the Queen Bitch of the Universe. See them in StarCraft .
The self-proclaimed "only guilty man in Shawshank prison" has wisdom to share, such as the best way to smuggle a Rita Hayworth poster into a Maine prison. See them in The Shawshank Redemption.
Roger Kint is a nervous, weak, ham-handed criminal. We think. See them in The Usual Suspects.