Maleficent is the protagonist villain and anti-hero of the 2014 film "Maleficent". Originally a sweet, kind young girl, Maleficent soon grew evil after being betrayed by her former boyfriend King Stefan. Maleficent became the darkest of them all and cursed young Princess Aurora with a sleeping curse. But after years and years of being evil and having a dislike for Aurora, Maleficent grew fond of the young girl and formed a parental bond with her, causing her to regret and attempt to revoke the sleeping curse. But when Maleficent was unable to, the only thing she saw fit to do was try to break it using true loves kiss. After the kiss had failed, Maleficent gave Aurora a kiss goodbye and the spell was broken. Maleficent and Diaval then fought their way out of the kingdom, killing King Stefan in the mix and she and Aurora lived happily ever after, peacefully in the Moors.
Despite being the primary protagonist, Maleficent briefly became an antagonist in the story, which is why she fits here.