HBO CEO Casey Bloys said JK Rowling has been 'fairly involved' in the planned 'Harry Potter' series, but it 'hasn't affected' casting decisions.

The Harry Potter HBO show is in its early stages, and only now seems to be on the verge of starting to get its cast together.

HBO is preparing a series about Harry Potter. There have been recent talks about the start of casting, and now there's a lot of buzz about the actor likely to play Dumbledore. Will he be a fit? For years,