Because you like Dolores Umbridge in Harry Potter Series

Hotheaded and arrogant, Kaneda is nevertheless fiercely protective of the biker gang he leads. See them in Akira.

Whether it's getting a deal or finishing a homework assignment, Jessica Huang demands nothing less than the best from those around her. See them in Fresh off the Boat.

Jax Teller can be cool or vengeful, calm or wrathful, depending on the situation. See them in Sons of Anarchy.

Dewey Finn will rock you. He feels rock and roll in his blood and guts. See them in School of Rock.

Peter Pan is a boy who never grew up. See them in Peter Pan.

His name is Olaf, he's a snowman, and he likes warm hugs. See them in Frozen.

Emily Fields has been very guarded, careful of whom she trusts and reveals her secrets to. See them in Pretty Little Liars.

He's a dedicated cop and a nice guy. But James Gordon is learning that Gotham is not a city for nice guys. See them in Gotham.

Orphan Bruce Wayne has a tortured soul, but he's trying his best to weed out corruption. See them in DC Extended Universe.

Although Mako Mori may be small and quiet, she is a core of battle-hardened steel. See them in Pacific Rim.

For Dana Scully, sometimes looking for extreme possibilities makes you blind to the probable explanation right in front of you. See them in The X-Files.

Sylar's victims are found all over the country, many with their brains removed. See them in Heroes.