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HBO has announced major casting updates for Season 2 of its 'Harry Potter' series, including new actors for Ginny Weasley, Tom Riddle, and Dobby.

HBO unveiled significant casting announcements for Season 2 of its much-anticipated ‘Harry Potter’ series on September 4, 2026. According to Deadline, the network has filled three pivotal roles: Ginny Weasley, Tom Riddle, and Dobby.
Billy Barratt, known for his role in Invasion, has been cast as a young version of Voldemort, specifically, Tom Riddle. Barratt holds the record as the youngest International Emmy winner, which positions him well for the role. This choice aligns with the producers’ decision to cast younger actors compared to the original film series, a trend noticeable in several castings this upcoming season.
In another notable casting, Lenny Rush, who has appeared in Am I Being Unreasonable?, will portray Dobby, the beloved house-elf. This casting is particularly interesting since the original film utilized CGI for the character, voiced by Toby Jones. HBO has yet to disclose whether Dobby will be portrayed using CGI, motion capture, or practical effects, leaving fans curious about how this iconic character will be reimagined.
Bonnie Hill, recognized for her work in Girl Troop versus Aliens, will step into the role of Ginny Weasley, bringing a fresh face to a character who becomes increasingly prominent this season. This decision follows Gracie Cochrane's announcement of her non-return for the upcoming season, having played Ginny in Season 1 of Harry Potter and the Philosopher’s Stone.
These new casting choices are pivotal as the series, based on J.K. Rowling's Harry Potter and the Chamber of Secrets, prepares to delve deeper into the characters' arcs. Ginny’s role becomes especially significant as she interacts with Tom Riddle and becomes a central figure within the narrative. The series producers have focused on a younger demographic for their characters, exemplified by the casting of Barratt and Rush.
Season 1 is set to premiere on HBO around Christmas, with filming for Season 2 scheduled to commence this fall. This strategic timing aims to build momentum and audience engagement as the story progresses. The cast will also include Kit Harington as Gilderoy Lockhart, adding further intrigue to the series' expansion.
The production team behind the Harry Potter series includes showrunner Francesca Gardiner, who has received acclaim for crafting this new interpretation. Co-showrunner Jon Brown, who contributed to the first season, will also lead the series moving forward, ensuring continuity in storytelling style. The cast features a versatile lineup with actors portraying pivotal roles such as Albus Dumbledore and Hermione Granger, ensuring a blend of new and familiar talents contributing to the reimagined story.
With a new season on the horizon and significant casting updates revealed, fans of the Harry Potter franchise can expect a combination of nostalgia and novel interpretation in the upcoming episodes. As HBO builds anticipation for the premiere of Season 1 and the future journey into Season 2, audience reactions and expectations will likely evolve as more details emerge. Fans will be eager to see how Dobby and Ginny’s characters take shape under the fresh talent of Barratt, Rush, and Hill.
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