The series boasts a wide ensemble. Dominic McLaughlin, Alastair Stout, and Arabella Stanton take on Harry, Ron, and Hermione. John Lithgow stars as Dumbledore, Nick Frost as Hagrid, Janet McTeer as McGonagall, and Luke Thallon, Bel Powley, Daniel Rigby, Katherine Parkinson, Rory Wilmot, Amos Kitson, and Anton Lesser fill other key roles. Related: HBOs ‘Harry Potter Could Bring Back More...
