A Game of Thrones: casting call

Game of Thrones is being made into a TV series

by HBO I am glad to say.
Hope they do as well as "Rome". Could be really cool.

But who to play the characters?

Can we agree that Tobey Maguire ought to be banned from being in it?
That Ian McKellen will somehow be in it.
That Judi Dench ought to be in it?
And that inevitably Sean Bean will be, and has some chance of being cast well...

h/t kos