HBO’s upcoming Harry Potter series is slowly assembling its Hogwarts faculty, and two more key roles are in the process of being finalized. Sources confirm that actress Janet McTeer ( The Old Man , Kaos ) is in negotiations to play Professor Minerva McGonagall,

There’s a new Albus Dumbledore coming to the small screen. John Lithgow has confirmed that he will portray the Hogwarts headmaster in HBO’s upcoming “Harry Potter” series, which will begin filming this summer.

In an interview with Screen Rant, Lithgow said that he has accepted the role of the Hogwarts head wizard in HBO's forthcoming series: “I'll be about 87 years old at the wrap party."

John Lithgow will be picking up a wand and heading to Hogwarts. The Conclave actor, 79, has confirmed that he will be playing Headmaster Albus Dumbledore in the HBO's Harry Potter television series, which will reboot the iconic franchise.

The HBO-produced Harry Potter TV series has, unsurprisingly, sparked much debate. The idea of revisiting the material from J.K. Rowling's novels, which were already used for a highly successful

They haven't even made it to set and the new Harry Potter television series is already shrouded in controversy.

The Battle of Hogwarts, which took place in the Harry Potter and the Deathly Hallows Part 2 film, was hugely skimmed through because of the film's limited duration. In terms of importance, this was a very important battle because it was this fight that finally marked the downfall of the main villain, Voldemort.

WBD may also enlist a key player from the films to bring viewers back to the world of Hogwarts: Framestore, British VFX company. RELATED: The Story Behind Francesca Gardiner’s HBO Hire ...

John Lithgow himself confirmed he is set to play Dumbledore in the upcoming “Harry Potter” series at HBO. In an interview with ScreenRant, Lithgow revealed he is indeed playing the headmaster of the Hogwarts School of Witchcraft and Wizardy in the hotly anticipated TV remake of J.K. Rowling’s books. For him, it represented a career-defining choice.

The Harry Potter HBO series is in negotiations with Janet McTeer to play Minerva McGonagall and Paap Essiedu is near a deal to play Severus Snape.