Ronald Weasley.

Ron is my favorite character in the books, and I was so nervous as to how they would portray him. And no matter how much Kloves makes him out to be the comic relief, the joker, the idiot who can only make scared faces and say "bloody ****", Rupert Grint does a phenominal job with Ron every single movie. He's the best, most natural actor of the three, and he is Ron Weasley. All fans should be proud of Grint for being the only single person in the entire cast who is exactly like their character in the book consistantly.

Shannon