Fan Casting Arthur in The Phantom of the Opera

Behind his mask, Arthur is a manipulator who hides his true story: in the past, he was obsessed with immortality, he worked there day and night until he found the love that took him away from his studies. But he discovered that one could make a pact with the devil to become immortal in exchange for the death of a loved one. Arthur killed his fiancée to give himself eternal life. But alas, it was not the one he expected because he became a ghost. Getting bored over the years, he just wants to be human again. But for that, he must kill a loved one who loves him back: Alice...