John Lithgow has admitted playing Albus Dumbledore in the 'Harry Potter' reboot series will likely be his final "major role".
The 79-year-old actor has been cast as the Hogwarts headmaster in the upcoming HBO adaptation of J.K. Rowling's magical book series and one of the reasons why he accepted the job was because he saw it as a good way to start "winding down" his career.