HBO has officially announced the casting of its three lead actors for the highly anticipated Harry Potter television series, marking a new chapter in the beloved franchise. Dominic McLaughlin will star as Harry Potter, with Arabella Stanton as Hermione Granger and Alastair Stout as Ron Weasley. The trio of young actors will portray the iconic characters who meet aboard the Hogwarts Express and embark on magical adventures throughout the seven-book saga.
The series, first announced by Warner Bros. Discovery, is expected to premiere in 2026 or 2027 and aims to deliver a faithful, long-form adaptation of J.K. Rowling’s original novels. Rowling, who will serve as an executive producer, expressed enthusiasm about the new format, saying it will allow for “a degree of depth and detail only afforded by a long-form television series.”
Dominic McLaughlin will also appear in the upcoming British comedy Grow, while Arabella Stanton brings experience from stage productions, including the lead role in Matilda the Musical on London’s West End. Alastair Stout, though new to the screen, was selected from thousands who responded to HBO’s casting call, which sought UK and Ireland-based children aged 9 to 11.
Francesca Gardiner, the show’s showrunner, and executive producer Mark Mylod praised the casting process, calling it an “extraordinary search.”
“The talent of these three unique actors is wonderful to behold, and we cannot wait for the world to witness their magic together onscreen,” they said in a joint statement.
The original film franchise, launched in 2001, turned its young leads — Daniel Radcliffe, Emma Watson, and Rupert Grint — into global stars. HBO’s new cast hopes to follow a similar path, with the series planned to span a full decade and remain closely aligned with the books’ storylines.
The supporting cast includes notable names such as John Lithgow as Albus Dumbledore, Janet McTeer as Professor McGonagall, and Paapa Essiedu as Severus Snape, adding further star power to the series.
While the show promises nostalgia for longtime fans, it also aims to introduce a new generation to the magic of Hogwarts — this time through the lens of a deeper, more detailed episodic format.
