Because you like Vizzini in The Princess Bride

Jo Wilson is an accomplished doctor who's getting over her past. See them in Grey's Anatomy.

When it comes to flattery, manipulation, and politics, Oswald Cobblepot can play with the best of them. See them in Gotham.

Eponine is a scrappy street urchin with a bad case of unrequited love. See them in Les Miserables.

Mavis Dracula's interests are anything black, scream cheese, and flying around. See them in Hotel Transylvania.

Merlin is half awkward teenager, half super-powerful wizard. He serves Prince Arthur of Camelot during the day and illegally learns magic at night. See them in Merlin.

Anya Jenkins has a real harsh bark to go with her demonic bite. See them in Buffy the Vampire Slayer.

More than any of her friends, Fluttershy is willing to see the best in everyone, a trait that has won over many enemies. See them in My Little Pony.

Butters Stotch is a kind-hearted student who likes ladybugs, Charlie's Angels, art class, baby-back ribs, and Little Bunny Foo Foo. See them in South Park.

Empathetic Nausicaa embraces all forms of life, even those that might scare other people. See them in Nausicaa of the Valley of the Wind.

He's the great Black Star, and he's come to assassinate you. See them in Soul Eater.

Donna Pinciotti is strong, independent, and empathetic. No one messes with her. See them in That '70s Show.

Quentin Coldwater has always suspected there was something different about him, and now he has the chance to prove it. See them in The Magicians.