United Kingdom, March 25 -- John Lithgow thinks his 'Harry Potter' schedule will be easier than 'The Crown'.

The 79-year-old actor is set to play Album Dumbledore in HBO's upcoming seven-series adaptation of J.K. Rowling's wizard saga, and the American star admitted despite the lengthy commitment, he might not have to be in London as often as he was when he played Winston Churchill on the Netflix period drama between 2016 and 2019.

Asked about his scheduled for 'Harry Potter', he told the 'SmartLess podcast: "I honestly don't know.

"I mean, I was over in England for eight months for 'The Crown' and barely came back [to the US].

"I think I may have come back once or twice. I imagine that I can come back much more."

He noted that he's ...