Star Butterfly is the main protagonist of the Disney Channel and Disney XD animated series, Star vs. the Forces of Evil. She is voiced by Eden Sher.
Star Butterfly is a very beautiful intergalactic princess from the Kingdom of Mewni, who has been sent to Earth by her parents to live a normal life, after many years of fighting evil in space. While on earth she lives with the Diaz family, and takes Marco Diaz on adventures in other dimensions, and in battles with monsters.
- Disney Wiki