Not surprising that one of my dream roles as an actor is Rakhir!
As for the rest of the cast, I think that less mainstream "stars" is always a good idea if you want good fantasy. Christopher Eccleston is a great choice as is...(although I hate to admit it because he is mainstream), Jude Law. These are just a couple of actors who will take the role seriously, and this is the main selling point for me. It is not who looks right, but who has the acting chops to "play" the role right and love the challenge.
I always hate the idea of big name actors who know nothing of the role or genre, shrugging their shoulders and taking the part because it will be a paycheque and a lark.
An actor hungry for the role will bring that passion to the screen!
(Also, I'd like to play Hawkmoon)
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"One longs for a good film version, say, of Fafhrd and the Gray Mouser, which conceivably might contain dialogue which grown up actors would not be ashamed to speak!" -Michael Moorcock