Janet McTeer and Paapa Essiedu in Talks for Key Roles in HBO’s Harry Potter Series

The acclaimed actors are negotiating to play Professors McGonagall and Snape in the highly anticipated adaptation of J.K. Rowling’s novels.

Janet McTeer, a two-time Oscar nominee and Tony winner, is in negotiations to portray Professor Minerva McGonagall, a role previously played by Dame Maggie Smith in the films.
Paapa Essiedu, known for his Emmy-nominated role in 'I May Destroy You,' is reportedly close to finalizing his deal to play Professor Severus Snape, originally portrayed by the late Alan Rickman.
John Lithgow has been confirmed as Albus Dumbledore, joining a growing cast for the series, which aims to explore Rowling’s books in greater depth than the films.
The series, developed by 'Succession' alums Francesca Gardiner and Mark Mylod, is planned to span a decade and will adhere closely to the canonical ages of its characters.
HBO has emphasized that casting details will only be confirmed once deals are finalized, with the series expected to debut in late 2026 or early 2027.