The Emmy-winning actor, hot off a SAG Award for "Conclave," said playing the Hogwarts headmaster would "define me for the last chapter of my life."

The HBO reboot of the Harry Potter series may have its first cast member. John Lithgow announced he'll be playing Dumbledore, but why is social media split?

John Lithgow has confirmed that he will portray the Hogwarts headmaster in HBO’s upcoming “Harry Potter” series, which will begin filming this summer. Lithgow, 79, said in an interview with ScreenRant that the invitation to play the beloved character came “as a total surprise.”