Boscha is a potions student who attends Hexside Academy of Magic and Demonics with Amity, Willow, and Gus. She is a typical teenage girl who is mean to those she looks down upon, and is the bossy ringleader of her friends. She is often seen hanging out with her friends or reviewing/updating her Penstegram account.
Boscha has a slender figure with pink skin, light purple eyes, and violet hair tied back in a bun. Like most witches on the Boiling Isles, she has pointy ears, but also has a third eye on her forehead. When attending school, Boscha wears a gray tunic with a dark gray belt, hoodie, and boots. As part of the Postions track, the color of her sleeves and leggings are yellow.
Boscha is most likely named after Hieronymus Bosch, a painter whose works inspired the show's art style.