Because you like Robert Angier in The Prestige

A suave manipulator, Sebastian Valmont is valiantly fighting off a developing conscience. See them in Cruel Intentions.

For Kazuya Mishima, the power of the Devil is now his and his alone. See them in Tekken .

Cyclops shoots lasers out of his eyes, destroying anything in his line of sight. See them in X-Men Series.

James Gordon happens to be the one guy in Gotham City with proper morals who doesn't also run around in a cape. See them in DC Extended Universe.

Donatello might come off as a tad nerdy, but don't let his geekiness fool you. He's a trained ninja and a skilled fighter. See them in Teenage Mutant Ninja Turtles.

Both a noble district attorney and a psychopathic villain, Harvey Dent proves some men really can have it all. See them in DC Extended Universe.

Aerith Gainsborough has lived a simple life, but when the world is threatened she's willing to step up and do whatever she can to help. See them in Final Fantasy Series.

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

Logan Huntzberger is a daredevil, romantic, and heir to a media empire. See them in Gilmore Girls.

A jealous woman is dangerous. A jealous assassin woman like Elle Driver is even more so. See them in Kill Bill vol. 1.

Mr. Pink doesn't tip. Enough said. See them in Reservoir Dogs.

Prideful and psychotic tendencies combine to make Dr. Eggman a dangerous and villain who will squash anyone in his path. See them in Sonic the Hedgehog.