John Lithgow's bizarre but darkly compelling performance in The Rule of Jenny Pen proves he's a good pick for Dumbledore in the Harry Potter TV show.

John Lithgow is opening up about how fans feel about him joining HBO’s “Harry Potter” series, considering the involvement of the contentious franchise creator J.K. Rowling.

John Lithgow accepted the iconic role of Hogwarts headmaster Albus Dumbledore in HBO's "Harry Potter" TV series, and he has no regrets. The upcoming TV show, which will be a new retelling of J.K ...