Alexander Skarsgard as Thor. As he has proved as Eric on "True Blood," Alexander is not bright and shiny—he needs to get a little dirty. With Thor, that's exactly what he would get. Alexander could channel the viking roughness he has been working on in "TB" into this always sweaty and screaming superhero. It could also offer us the opportunity to get a little more Skarsgard sans clothes, and how can you argue with that?