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."

Nick Frost, Paapa Essiedu, Janet McTeer and Paul Whitehouse will appear in the forthcoming Harry Potter TV series, US network HBO has confirmed. Frost has been cast as Hagrid, McTeer will play Minerva McGonagall, and Essiedu will portray Severus Snape. All three were reported to be in talks with the network in recent weeks.