HBO's new "Harry Potter" television series is expected to debut in 2027 and despite controversy, J.K. Rowling is involved. Here's what we know.

HBO has released the first look at the comedian and actor in costume as the half-giant and Hogwarts groundskeeper Rubeus Hagrid for its upcoming "Harry Potter" series. The photo was shared to the official "Harry Potter" and HBO Max social media accounts.

HBO just confirmed additional cast for its upcoming Harry Potter TV series adaptation, plus released the first look of young Dominic McLaughlin as Potter.

HBO's "Harry Potter" television adaptation is slowly coming together, but we're still a ways out from actually getting it on our screens. That said, we are learning more and more as the months go on.

HBO's "Harry Potter" television series has started production and added several more actors to its cast, the network revealed on Monday, July 14. The new cast members include: Rory Wilmot as Neville Longbottom; Amos Kitson as Dudley Dursley; Louise Brealey as Madam Rolanda Hooch; and Anton Lesser as Garrick Ollivander.

HBO has released a first look at Nick Frost as Hogwarts gamekeeper Rubeus Hagrid (below).

There's a lot of characters in the Wizarding World, but it's not just about the Golden Trio and the bigger names.

The show has the power to explore backstories, themes, and details that the movies never did, including Neville's tragic history. Fingers are crossed that the Harry Potter show is as good if not better than the movies. The series is expected to make its debut on HBO Max in 2027, and more news about its development will be coming in until then.