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.

As HBO gears up for its upcoming Harry Potter TV show, it's also had to face questions surrounding the involvement of author J.K. Rowling. HBO and Max content boss Casey Bloys fielded the latest of those questions at a press event on Tuesday,