
Moody is a gunslinger with a wand. He`s someone who has chased the demons away from goodness to the extent that he`s gotten quite warped by it. One of the things [director] Mike Newell suggested when we first discussed the character was that Moody`s great wounds have damaged him greatly. It`s a very interesting arc to play with this character, who comes into Hogwarts as death warmed over and grows into someone the kids learn to trust.
(thinkexist.com)