Harry Potter Recast: Kit Harington Replaces Nicholas Hoult
HBO Max has confirmed that Kit Harington will play Gilderoy Lockhart in Season 2 of the Harry Potter series. Nicholas Hoult, announced in the role barely two weeks ago, has left the production over scheduling.
A swap before filming starts
The network broke the news itself on its official social channels, and kept things light: before year two at Hogwarts begins, there has been a small change for scheduling reasons.
That is a brief note for a part that carries half of Harry Potter and the Chamber of Secrets. Lockhart arrives as the new Defence Against the Dark Arts teacher, a celebrated author and self-styled hero.
He is eventually exposed as a fraud who claimed other wizards’ achievements as his own after wiping their memories. Kenneth Branagh played him in the 2002 film.
Why Nicholas Hoult left
Behind the scenes, a scheduling conflict was the cause. HBO had been building the Season 2 shoot around two of Hoult’s existing commitments; he is currently filming Man of Tomorrow.
Once Lockhart’s scenes moved within that schedule, the arrangement no longer worked and Hoult was released from his deal. HBO approached Harington, who turned out to be available.
He called the offer “a real dream” shortly afterwards, admitting Lockhart has long been one of his favourite characters. Season 2 shoots this autumn; Season 1 arrives on Christmas Day 2026.
From audiobook to screen
Something most coverage skipped over: Harington has played Lockhart before. In late 2025 he voiced the character for Harry Potter: The Full-Cast Audio Editions on Audible.
That makes him the first actor to move from those recordings into the television series. Arabella Stanton plays Hermione Granger in both productions, but in her case it ran the other way: she was cast for television in May 2025 and announced for the audiobooks afterwards.
For a production meant to run a decade, that is a shrewd habit. HBO has a pool of actors there who already know the text and whose voice and timing have been tested against the part.
It also fits the character. Lockhart is a man who performs constantly, and Harington has said the audiobook version will not simply transfer to screen — voice work gave him a feel for the man, but the physical comedy of that vanity is a different problem to solve.
If you want to know exactly what he is stepping into, the book lays it out in full. Our complete guide to Chamber of Secrets covers how Rowling uses Lockhart to satirise celebrity and incompetence in authority.