i surf ign way too much lol.
here's a bit more info on season 2 and the new characters that will be showing up.
for someone like myself that hasn't read the books it's a good base to get to know who's who and what their roles are. it's not really in depth just gives you a brief description of who they're tied to in the series and who the actors will be.
http://tv.ign.com/articles/118/1189387p1.html