“We are happy to announce the casting of John Lithgow, Janet McTeer, Paapa Essiedu, Nick Frost, Luke Thallon and Paul Whitehouse to play Dumbledore, McGonagall, Snape, Hagrid, Quirrell and Filch ...

Luke Thallon, from The Favourite, will be the shy and mysterious Professor Quirrell. Paul Whitehouse returns as Filch, the grumpy school caretaker. He was also in the original Prisoner of Azkaban ...

While the rest of the casting did not cause a stir, fans are not very happy with the casting of Paapa Essiedu as Severus Snape, a role that was popularized by Alan Rickman in the film series.