Out of that list, definitely Walken. There may be someone better out there that I'm just not thinking of, though.
I didn't know that they were remaking this movie. Personally, I feel that a remake of this movie would be a huge waste of time and money. I don't think the original could ever be topped. Period. I'm sure the Oompa Loompas and everything else will be computer animated and look really stupid. But even if they got all of the technical aspects right, I think that they would have a hard time recreating that intangible charm that the original had.
So who is directing this?
Relevant: Prince, PT Anderson, Punk, Post-Punk, Purple, Party of Five, Peter Swanson, Peter Gabriel-led Genesis, "Peter Panic", Paul's Boutique, Potential Energy, Every Features MB member but me.