What if Harry Potter had a twin sister name Ellie Potter? What if Daniel Radcliffe had a twin sister named Bella Radcliffe? Bella had played as Ellie Potter, the twin sister of Harry Potter. She has been in all 7 movies, but what she didn't know there was one cast member who had a crush on her since the 5th movie: The order of the phoenix. I do not own Harry Potter. Only Bella Radcliffe, Ellie Potter, and Sarah Radcliffe. Please follow me and please read my other fanfic about Zach Mitchell from Jurassic World.