Miss Heinous real name Meteora Butterfly a character and the main antagonist of Season 3 in the Disney XD animated series, Star vs. the Forces of Evil. She is the former headmistress of St. Olga's Reform School for Wayward Princesses, who first appeared in the episode of the same name. In the episode, Monster Bash, it is revealed that Miss Heinous's real name is Meteora Butterfly and that she is the long lost daughter of Eclipsa Butterfly, and determined to know the truth sets out to claim the throne of Mewni.
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