Wicked Witch Of The West
When you have "wicked" and "witch" in the same sentence, you know you're dealing with a legit villain. Once you toss in the fact that her face is green and she cohorts with flying monkeys, it definitely takes on a whole new level of creepy. But in the Wizard of Oz, that's exactly what we get and it's this Wicked Witch who's doing everything in her power to stop Dorothy from going home.