I want Christopher Lee to be a Greybeard.
Edit: Actually are the Greybeards not allowed to talk because it's too dangerous? Damn.
I'd also like Terrence Stamp back to do a dragon maybe.
I loved walking in paradise and listening to his voice in Oblivion... such a nice voice...
OMG Alan Rickman needs to do a grumpy alchemy trainer or something. xD