Originally Posted by EvilManagedCare 
However, Wikipedia lists Saruman, Galadriel & Radaghast as characters in the upcoming films. I do not recall any of them being in the Hobbit, or am I forgetting?
I don't have a problem with those characters making cameos since, as Glyphwright pointed out, they're at least mentioned (sort of) in the book.
What really bugs me is Orlando Bloom making an appearance as Legolas so they can sell more tickets to teenage girls.