Because you like Nina Sayer in Black Swan
Hans Landa doesn't seem to have issues with Jews, but he hunts them because he's determined to do his job well. See them in Inglourious Basterds.
A powerful priestess, Melisandre is shrouded in mystery and lots of red. See them in Game of Thrones.
Underneath her brassy, sarcastic exterior, Olive Penderghast is more sensitive than she pretends to be. See them in Easy A.
Max Fischer is the President of every club who's fighting to save Latin at his school and kiss his teacher. See them in Rushmore.
Marge Simpson is a mostly happy housewife and subscriber to Sponge and Vacuum Magazine. See them in The Simpsons.
Leslie Burke is bold, courageous, and imaginative enough to create a world from scratch. See them in Bridge to Terabithia.
Green skin, pointy hat, evil cackle—this villain has it all! See them in The Wizard of Oz.
Just because Dracula wants to suck your blood doesn't mean he's not a gentleman. See them in Dracula.
A rugged frontiersman and consummate survivor, Hugh Glass has a relationship with the natural world that is downright spiritual. See them in The Revenant.
Dolores Umbridge keeps her villainy hidden (albeit poorly) behind a sheen of sugary pink politeness. See them in Harry Potter Series.