John Lithgow previously stated that he had been cast as Dumbledore, which HBO confirmed Monday, along with Janet McTeer as Minerva McGonagall, Paapa Essiedu as Severus Snape and Nick Frost as Rubeus Hagrid. Those four will all serve as series regulars.

Nick Frost, Paapa Essiedu, Janet McTeer and Paul Whitehouse will appear in the forthcoming Harry Potter TV series, US network HBO has confirmed. Frost has been cast as Hagrid, McTeer will play Minerva McGonagall, and Essiedu will portray Severus Snape. All three were reported to be in talks with the network in recent weeks.

HBO just confirmed the six adult leads from its upcoming Harry Potter TV series and pledges a "faithful adaptation."