The recently released official teaser trailer for HBO's upcoming series Harry Potter and the Philosopher's Stone drew more than 277 million organic (non-paid) views across platforms in its first 48 hours, becoming the most-watched trailer in HBO and HBO Max history and doubling the previous record, according to the company. The eight-episode series will make its debut Christmas 2026 on HBO and will be available to stream exclusively on HBO Max.
The project stars Dominic McLaughlin as Harry Potter, Arabella Stanton as Hermione Granger, Alastair Stout as Ron Weasley, and John Lithgow as Albus Dumbledore. Other cast members include Janet McTeer, Paapa Essiedu, Nick Frost, Rory Wilmot, Lox Pratt, Leo Earley, Elijah Oshin, Tristan Harland, Gabriel Harland, Ruari Spooner, Alessia Leoni, Sienna Moosah, Finn Stephens, William Nash, Warwick Davis, and Sirine Saba.
Based on J.K. Rowling's novels, the series is written and executive produced by Francesca Gardiner. Mark Mylod will executive produce and direct multiple episodes in association with Brontë Film and TV and Warner Bros. Television. Executive producers also include Rowling, Neil Blair, and Ruth Kenley-Letts of Brontë Film and TV, and David Heyman of Heyday Films.