John Lithgow is playing Dumbledore in the upcoming TV adaptation of ‘Harry Potter.’ Meet the entire cast so far.

Casting for six major characters in HBO's upcoming 'Harry Potter' series, including Dumbledore, Snape and Hagrid have been announced.

John Lithgow, a six-time Emmy and two-time Tony Award winner, will star as Albus Dumbledore.Lithgow also is an Olivier winner and a BAFTA and Oscar nominee. Janet McTeer is cast as Minerva McGonagall.

Luke Thallon as Quirinus Quirrell; Paul Whitehouse, a five-time BAFTA winner, as Argus Filch; Who wrote the HBO ‘Harry Potter’ series? The serie ...

Meet the stars playing Dumbledore, Hagrid, and McGonagall in new JK Rowling series - The new Harry Potter cast has been unveiled, featuring John Lithgow as Dumbledore, Janet McTeer as McGonagall, and ...