A second season of HBO’s original Harry Potter TV series is currently in development as the cast continues to expand. The streaming platform has announced plans for an accelerated production schedule for the adaptation of J.K. Rowling’s beloved book series, with Season 1 already in progress and production set to commence soon for Season 2.
No official release date has been announced for Season 2 of the series, though production is slated to begin this fall ahead of Season 1’s premiere.
Bonnie Hill will step into the role of Ginny Weasley, Ron’s younger sister and the youngest Weasley sibling, replacing Gracie Cochrane who played the character in Season 1. Cochrane departed the series due to unforeseen circumstances, leading to the recasting of both Harry’s eventual love interest and a crucial character from Rowling’s second book, The Chamber of Secrets.
Lenny Rush (Am I Being Unreasonable?) will portray Dobby, the loyal house-elf who serves the Malfoy family. Billy Barratt (Invasion), who holds the distinction of being the youngest International Emmy winner, will play Tom Riddle, the younger version of Lord Voldemort.
Deadline was first to report Nicholas Hoult’s casting as Professor Gilderoy Lockhart, who serves as the Defense Against the Dark Arts teacher in Rowling’s book The Chamber of Secrets. The publication subsequently reported that Kit Harrington would take over the role after Hoult departed due to scheduling conflicts. Harrington provides the voice for the character in the audiobooks.
The most recent additions to the cast include Molly Hewitt-Richards as Moaning Myrtle, Rafe Spall as patriarch Arthur Weasley, and Jasper Ambrose as Colin Creevey. Notably, Rafe Spall is the son of Timothy Spall, who portrayed Peter Pettigrew (Wormtail) from the third Harry Potter film onwards. Deadline first reported that casting for Creevey—whose camera plays a significant role in Season 2—was underway in June.
Harry Gilby will portray Ron’s eldest brother Charlie Weasley, who works with dragons in Romania. Jasper Talbott and Hannah Chinn will play James and Lily Potter, Harry’s deceased parents.
Jon Brown (Succession), who served as a writer during the first season, has been promoted to co-showrunner for Season 2 alongside Season 1 showrunner Francesca Gardiner. This promotion aligns with the accelerated production timeline.
“As we have laid out our plans for overlapping production schedules to finish Season 1 by Christmas and return to production for Season 2 this autumn, it has become clear that bringing on a co-showrunner is key to maintaining our momentum,” Gardiner stated. “I’ve loved working with Jon from our very first day together on Succession through to our recent collaborations on Harry Potter. Not only do I have tremendous admiration for his writing, but he’s also an exceptional collaborator and wonderful person. We feel fortunate to have him.”
Gardiner also serves as executive producer. Mark Mylod joins as executive producer and directed multiple episodes. Rowling, Neil Blair, and Ruth Kenley-Letts of Brontë Film and TV, along with David Heyman of Heyday Films, also serve as executive producers of the series, which is produced by HBO in association with Brontë Film and TV and Warner Bros. Television. The series will air on HBO and be available exclusively to stream on HBO Max.
Season 1 of the series is scheduled to premiere on Christmas Day 2026.
While the concept involves adapting one season per book, the show has not yet been renewed for a third season. HBO and Max Content Chairman and CEO Casey Bloys provided updates on the series following the 2026 Emmy Awards.
“Each book represents a significant event,” Bloys explained. “I’m currently approaching this season by season in terms of how it all comes together. However, I can confirm that Christmas Day will mark an excellent launch day for Harry Potter.”
He also emphasized the commitment to maintaining a streamlined production schedule.
“We’re working diligently to bring it back as quickly as possible. It won’t be a two-year gap between seasons, but we’re striving to keep the intervals as condensed as feasible,” he noted.
