thanx to veritaserum
In an interview with the LA Times, Brendan Gleeson (Mad-Eye Moody) said that he hopes to return for Harry Potter and the Order of the Phoenix, in which his character is featured. From the interview:
Were you familiar with the Harry Potter books and movies before being cast as Mad-Eye?
I have four boys. The youngest is 16 now. But they were mad for the books. There was a big shout when they heard there was a possibility of it, even. When I got the script I went to the boys, and they more or less told me what he was (about in the book). It was a real help that their impression of him had been so much fuller than what I read in the script.
He's kind of a father figure, and he's that kind of mad lunatic on your side, and he always seems to be there whenever you are in very bad trouble.
Will you be doing the next Potter film?
The experience was great, and I hope to be back.