Ugh. I said I wouldn't do this. Here goes anyway.
+ Adam Baldwin as Kelsier (or Christian Bale, if they could get him)
If Christian Bale is part of this movie I won't watch it. I've never seen him in any fashion other than the "wow he makes me want to puke". On the other hand, Adam Baldwin would be hella cool but I don't think he fits the role too well. My initial instinct, quite likely to never occur, was Zachary Quinto. He can certainly pull off the martyred-god type. Also you could add Nathon Fillion to this list as a great Kelsier, I think.
+ Neil Patrick Harris as Dockson
+ John Travolta as Breeze (they'd never get him for that role, but he's perfect for it)
+ Brendan Gleeson (Mad-eye Moody) as Clubs
heh why not?
+ Summer Glau would indeed make a great Vin...at least for the first book. I've never seen her play a "normal" character, so I'm not sure she could pull off the better-adjusted Vin of book 3.
I honestly wish nobody had mentioned Summer Glau. I love her to death and I'd love to see her as Vin but now that someone has mentioned it, I can't fathom it being anybody but her. Problem? I'm going to be disappointed, now, no matter who it is unless it's her.
+ I still think Vin Diesel would make a great Lord Ruler. He'd also do for Marsh, though I don't think you could sell him as Adam Baldwin's brother.
I think he'd do better as Marsh, personally... Why couldn't we get someone like Christopher Walken to be TLR? Actually he seems the type of actor who would relish that kind of role
+ Dwayne "The Rock" Johnson would do for Ham.
+ I like the idea of Hayden Christensen as Spook (I know, I know...but I thought he actually did as well as anyone could speaking Lucas' craptastic dialog).
+ I'd cast Topher Grace as Elend Venture.
Dunno who this is so I can't really comment on the match.
Who am I forgetting? Can you see why I say I stink at these games?
One big name sticks out... Sazed... who, by description, may be best fit by Dwayne Johnson, TBH.