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.

Warner Bros. and HBO have unveiled the first wave of casting for their long-anticipated Harry Potter television series.

HBO is officially confirming the first cast members for the “ Harry Potter ” TV series.