Elizabeth Euphemia Potter. Spoiler alert: she's Harry Potter's twin sister. Lizzie Potter never noticed anything special about her brother, really what sister does? They quarreled and teased each other in tandem with defending each other against the Dursley's. But then a pair of letters came in the mail, a giant knocked down their door, and Dudley got a pig's tail. Harry became a star and Lizzie became "Harry's sister". What was big deal about his scar? Why did Snape hate them so much? Why did some cranky old wizard with no nose matter at all? Lizzie liked mystery novels, she even liked playing detective, but she absolutely hated having to pick up after her headstrong brother. (Harry Potter/the universe belongs to JKR, not me, but Lizzie and other new characters are my creation)