Bill Weasley! I wish there was more about him in the books, but more than that I wish they hadn't cut Bill out of the first six movies. He's my favourite character, and the whole relationship with Fleur, and his getting mauled by Greyback is so emotional. At the end of Halfblood Prince, I was sobbing harder even than I did at Mockingjay, and it wasn't because of Dumbledore; it was because of Bill. But they almost cut him entirely out of the movies! He's only in the last two briefly. I want more Bill!