[quote name='cronos619' post='1648672' date='Jan 14 2009, 12.26']If short cameos would work better for him, I could see him as a very sinister Roose Bolton[/quote]
As much as I would love to see Ralph have a bigger role - I agree that he would make a great Roose.
However, his talents are not limited to evil: his various roles also show a range from love sick and heartbroken to strong and compelling.
He's wrong for the Hound - Davos would be acceptable.
But the fangirl in me would love him more as Ned - would also be a big name to pull in non-fan viewership (though there might be some fallout based on his storyline).