Stage and screen actress Janet McTeer has been cast as Minerva McGonnagal in the series. The role was originated by the late Dame Maggie Smith, but Janet will be hoping to put her own stamp on the role. Across film and TV, the Tony and Olivier Award-winning actress has appeared in the likes of Wuthering Heights, As You Like It, The Menu and Ozark.

The new Harry Potter TV series pre-production is going on in full flow as new cast members are being announced. The main trio has already been cast, alongside other pivotal roles like Draco Malfoy, Albus Dumbledore,

The cast of the highly-anticipated Harry Potter TV series is growing, with new stars being announced to take on the roles of Molly Weasley, Draco Malfoy and more