Boscha is a potions student who attends Hexside School of Magic and Demonics with Amity, Willow Park, and Gus Porter. 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 Penstagram account.
She is the captain of the school grudgeby team, and is overly proud of her abilities. Despite being "friends" with Amity, Amity actually dislikes Boscha and the others because they are cruel, and because her parents forced her to be friends with people like Boscha and Skara because they are from upper-class, rich families, unlike Amity's former friend Willow, who wasn't the most skilled witch. When Amity isn't around, Boscha is the leader of the clique.
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 Potions 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.
Her eyebrows have a tendency to disappear and reappear. This is possibly an artistic choice on the part of the animators as it usually happens based on her emotional state.