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.

A scripted Harry Potter TV show is coming to HBO, and the first cast announcements are here. John Lithgow will play Dumbledore, and Paapa Essiedu will play Snape.