9. Hansel and Gretel
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Perhaps the most evil villain in all of fairy-tale-dom is the evil queen from the original "Snow White." She's the Leona Helmsley of children's literature, if Leona had brains and a personality.
The original version called "Little Snow-White" is actually a much more frightening tale as evidenced by the queen's original request. The queen doesn't just order the woodsman to kill Snow White and bring back her heart. She also asks for her lungs and liver. The woodsman still helps Snow White escape without harm but he kills a bear and brings back its liver and lungs instead, which the queen immediately whips up into a tasty stew and eats, presumably with some fava beans and a nice chianti.