HBO’s Harry Potter reboot series has made a major casting change for Season 2. Kit Harington will step into the role of Gilderoy Lockhart, replacing Nicholas Hoult, who exited due to scheduling conflicts. Fans of the franchise will recognize that Harington has already played Lockhart before — he voiced the character in Audible’s Harry Potter audiobooks, making this casting feel like a natural continuation.
Quick read
- Nicholas Hoult exits due to scheduling conflicts.
- Kit Harington replaces him as Gilderoy Lockhart.
- Harington previously voiced Lockhart in Audible audiobooks.
Why Kit Harington fits the role
Lockhart is one of the most flamboyant and comic characters in the series — a vain wizard who takes credit for others’ achievements and becomes Hogwarts’ Defense Against the Dark Arts professor. Kenneth Branagh famously played him in the 2002 film. Harington, best known as Jon Snow in Game of Thrones, brings both star power and prior experience. He described Lockhart as “entertaining and fun to do as an actor” and said it was a “no‑brainer” to take the role after Hoult’s departure.
Production details
Season 2 will begin filming in autumn 2026, adapting The Chamber of Secrets. Jon Brown has been promoted to co‑showrunner alongside Francesca Gardiner. J.K. Rowling, Neil Blair, Ruth Kenley‑Letts, and David Heyman are executive producers, with Warner Bros. Television producing. Season 1, which adapts The Philosopher’s Stone, is set to premiere on Christmas Day 2026.
Hoult was originally announced as Lockhart earlier in 2026, but HBO couldn’t align his filming schedule with other commitments, including reprising Lex Luthor in Man of Tomorrow. His departure was confirmed to be purely due to scheduling conflicts, not creative differences.
