Here's everything to know about HBO's 'Harry Potter' series, which may have recently cast its new Dumbledore After seven books, eight movies, one play and a whole spin-off series, Harry Potter is debuting on the small screen for the first time.

"Harry Potter" seems to have found its Professor Snape and is in negotiations with a potential Professor McGonagall. Here's everything we know.

Almost two years after the first announcement, the show is finally taking a bit more distinctive shape — specifically with John Lithgow announcing he’s “said yes” to the role of Albus Dumbledore, making him the first actor to confirm for the new show.