The series was first announced back in 2023, when HBO first launched the new name for its streaming service, Max. It has yet to be officially confirmed that each season will span one novel, similar to Disney+’s “Percy Jackson and the Olympians” series, but each book does take place over a single school year, as did the movies.

HBO just confirmed the six adult leads from its upcoming Harry Potter TV series and pledges a "faithful adaptation."

John Lithgow is playing Dumbledore in the upcoming TV adaptation of 'Harry Potter.' Meet the entire cast so far.