Washington, March 24 -- Actor John Lithgow does not appear to be nervous as he takes on the role of one of literature's most renowned characters.

The 79-year-old actor has been cast as Albus Dumbledore in HBO's next Harry Potter TV series, and he indicated that he doesn't believe the part will be "that hard," reported People.

He told hosts Jason Bateman, Sean Hayes and Will Arnett that he's "behind everybody" as he's only now reading the book series, which was written by J.K. Rowling, and is "halfway through the second" book right now.

"The overall concept of this entire reboot of Harry Potter is an entire season is devoted to a single novel," Lithgow said of the series, which HBO announced in April 2023, as per the outlet.

Lithgow sh...