A scripted Harry Potter TV show is coming to HBO, and the first cast announcements are here. John Lithgow will play Dumbledore, and Paapa Essiedu will play Snape.

HBO announces the stars filling out the Hogwarts staff roster in its upcoming 'Harry Potter' TV series. The series will feature John Lithgow as Albus Dumbledore, Janet McTeer as Minerva McGonagall, Paapa Essiedu as Severus Snape,

Casting for a hugely-anticipated television show based on JK Rowling’s boy wizard books is now at an advanced stage.