Because you like Pinhead in Hellraiser
Rainbow Dash's interests include flying, playing pranks, and generally being themost awesome pony around. See them in My Little Pony.
People make more sense to the hyper-logical Temperance Brennan after they're dead. See them in Bones.
Marie Antoinette may be a fun-loving queen who has it all, but her husband doesn't know how to have sex, and an angry mob wants to cut off her head. See them in Marie Antoinette.
Jasmine dreams of something more than palace life, and she's not afraid to go get it. See them in Aladdin.
Sylar's victims are found all over the country, many with their brains removed. See them in Heroes.
An infamous vampire, Alucard is a one-man killing machine with a philosophical side. See them in Hellsing.
For somebody who won't answer questions, the enigmatic C.C. sure asks a lot of them. See them in Code Geass.
Toph is a tenacious earthbender full of spirit and spunk and hates when people try to baby her because she's blind. See them in Avatar: The Last Airbender.
Kesuke Miyagi is a karate expert who thinks the best way a scrawny high schooler can learn how to defend himself is by washing every surface in sight. See them in The Karate Kid.
Stella Grant is an organized, orderly optimist living with a dangerous disease. See them in Five Feet Apart.
Luke Skywalker always wanted to leave home, but he didn't expect that it would be as part of a quest to rescue a princess and save the galaxy. See them in Star Wars Series.
Frodo might have carried the ring, but Samwise Gamgee carried the ring bearer. See them in The Lord of the Rings.