Nick Frost, Paapa Essiedu, Janet McTeer and Paul Whitehouse will appear in the forthcoming Harry Potter TV series, US network HBO has confirmed.

Axar.az reports, citing BBC, 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.

HBO have now formally confirmed their casting, and announced that Whitehouse, well known for the Fast Show and Harry & Paul, will play Argus Filch.

The network also confirmed John Lithgow's announcement in February that he will play Hogwarts headmaster Albus Dumbledore.

The show is due to begin filming this summer, with the first series airing potentially as early as next year.

The actors playing Harry Potter, Ron Weasley and Hermione Granger have not yet been cast.

HBO launched an open casting call for the three lead roles, which reportedly attracted more than 30,000 submissions.