One thing about John Lithgow that is undeniable is that he is very much not English. Nevertheless, he's been picked to play the very, very English icon Dumbledore in HBO's upcoming "Harry Potter" series.

HBO’s Harry Potter series casts John Lithgow as Dumbledore, and the actor responds to concerns that he’s an American undertaking the role.

When asked about the offer to play Dumbledore, Lithgow described the decision as "not easy," recognizing it could define the final phase of his illustrious career.