Nicholas Hoult has signed up for the second series of the Harry Potter TV series. The 36-year-old actor will play Gilderoy Lockhart in the programme - the role previously played by Kenneth Branagh in Harry Potter and the Chamber of Secrets, the 2002 movie adaptation of JK Rowling’s boy wizard books. The second season of Harry Potter is due to start filming later this year, according to Deadline - before the first season of the HBO Max show has even aired. The pilot of the small screen adaptation, titled Harry Potter and the Philosopher’s Stone, is due to air this Christmas. Nick Frost is playing Rubeus Hagrid in the Potter TV series, with John Lithgow taking on the role of Hogwarts headmaster Albus Dumbledore and Janet McTeer playing Professor McGonagall.