New Harry Potter trio steps into the spotlight at HBO Max UK launch

HBO Max UK launches with a star-studded party where new Harry Potter trio enjoys first red carpet moment

The new Harry Potter trio got their first taste of fame on Wednesday night at a glittering launch event for HBO Max in London. Dominic McLaughlin, Alastair Stout and Arabella Stanton, cast as Harry Potter, Ron Weasley and Hermione Granger in the upcoming TV reboot, attended their very first red carpet together at Queen Elizabeth Hall, part of London’s Southbank Centre.

The young actors, who were reportedly not allowed out past 7:30 p.m., mingled with an impressive guest list that included Steve Carell, Lisa Kudrow, Noah Wyle, Linda Cardellini and David Chase. Local talent such as Marisa Abela, Aimee Lou Wood, Jason Isaacs, Matt Smith, Olivia Cooke and James Norton were also in attendance, adding to the star-studded atmosphere.

The event marked HBO Max’s official launch in the U.K., with executives setting aside corporate concerns about the recent Warner Bros. Discovery and Paramount+ merger to celebrate. J.B. Perrette, CEO and president of global streaming at WBD, described the night as “a moment that has been years, if not decades, in the making.” HBO CEO Casey Bloys added that he was proud to bring the platform’s library and shows to audiences in the U.K. and Ireland.

A highlight of the evening was the debut of the first teaser for the new “Harry Potter and the Philosopher’s Stone” series. The trailer features McLaughlin, Stout and Stanton arriving at Hogwarts for their first terms, offering fans a glimpse of the trio’s chemistry and the magical world they will inhabit. In keeping with the HBO theme, guests could explore interactive rooms inspired by the network’s shows, including a recreation of Harry Potter’s cupboard under the stairs, and enjoy themed cocktails such as the Penicillin shot from “The Pitt.”

The launch party offered a rare opportunity for the young cast to step out of the wizarding world and experience a high-profile media event alongside established stars. For McLaughlin, Stout and Stanton, the night marked not only their red carpet debut but a public introduction as the next generation of some of the most iconic characters in contemporary fantasy.

Industry observers noted that the combination of a lavish U.K. launch, a teaser drop and a star-studded guest list signalled HBO Max’s commitment to establishing itself as a major player in the U.K. streaming market, even amid ongoing corporate consolidation. Fans and media alike were quick to share images and reactions from the event, cementing the young actors’ arrival on the global stage.