There's something almost poetic about a casting rumor this unexpected, and it might be the strangest twist yet in HBO's ongoing Harry Potter reboot saga. For years, fans have debated whether any actor from the original film franchise would ever step back into this world in any form, and now word is spreading that the man who spent a decade as the boy who lived could be circling one of the franchise's most iconic villains instead. That rumor lands right alongside a batch of new casting confirmations and a freshly dropped trailer that's already splitting fan opinion online.
Here's what we're covering:
- The rumor linking Daniel Radcliffe to the role of Lord Voldemort
- The actor already cast as young Tom Riddle
- Fresh casting news for Dobby and a new Ginny Weasley
- A breakdown of the new trailer and the mixed reactions rolling in
From Boy Wizard to Dark Lord, If the Rumors Hold Up
Culture Crave reported on X that Daniel Radcliffe is reportedly close to verbally agreeing to a deal with HBO to play Lord Voldemort in the network's upcoming Harry Potter series. Should this actually come together, it would be a genuinely remarkable turn for Radcliffe, taking him from the actor synonymous with Harry Potter for an entire decade to portraying the character's most feared adversary instead.
Daniel Radcliffe is reportedly CLOSE to verbally agreeing a deal with HBO to play Lord Voldemort in the upcoming Harry Potter reboot series.
If the deal is finalized, the former Harry Potter actor would go from the boy who lived to he who must not be named. pic.twitter.com/KGnaewAr2N
— Culture Cave (@CultureCave_) September 6, 2026
It's important to note exactly what this rumor covers. This would be the older, adult version of Voldemort rather than the character's younger form as Tom Riddle, a role that's already been cast separately. With the deal still described as close rather than confirmed, nothing is official yet, though the possibility alone has already sent fan speculation into overdrive.
Meet the Actor Already Playing Voldemort's Younger Self
Even as fans wonder who might eventually play the older Voldemort, HBO has already locked in the role of Tom Riddle, along with several other key casting decisions. Billy Barratt, recognizable from Bring Her Back and Invasion, has landed the role of young Lord Voldemort. Barratt's resume already includes a notable achievement, having become the youngest actor ever to win the International Emmy Award for Best Actor at age 13 for his performance in the TV movie Responsible Child. He's currently the only actor officially attached to any version of Voldemort in this new adaptation, with the identity of whoever plays the character's older, more recognizable form still a mystery, one fans expect might finally surface briefly at the close of season one.
Dobby and a New Ginny Join the Cast List
Beyond the Tom Riddle news, HBO confirmed British actor and presenter Lenny Rush, known for A Woman of Substance, has been cast as Dobby the house elf, a role expected to rely on CG effects much like the character's appearance in the original film series.
Separately, young actress Bonnie Hill, known for The Six Triple Eight and Girl Troop versus Aliens, has taken over the role of Ginny Weasley heading into season two. The recast follows original actress Gracie Cochrane's decision to step away from the part after wrapping filming on season one. The production shared a direct statement addressing her departure: “Due to unforeseen circumstances Gracie Cochrane has made the challenging decision to step away from her role as Ginny Weasley in the HBO Harry Potter series after season one. Her time as part of the Harry Potter world has been truly wonderful, and she is deeply grateful to Lucy Bevan and the entire production team for creating such an unforgettable experience. Gracie is very excited about the opportunities her future holds.”
A Brand New Trailer Has Fans Arguing in Both Directions
This wave of casting updates arrives alongside HBO's release of a new, full length trailer for the series, officially titled Harry Potter and the Philosopher's Stone for its debut season. Along with the trailer, HBO shared an updated logline: “There is nothing special about Harry Potter, or so his Aunt Petunia tells him. But when a mysterious letter of admission to Hogwarts School of Witchcraft and Wizardry arrives, it opens the door to a hidden world of magic, friendship and adventure. Yet behind Hogwarts' enchanted walls lie dark secrets. Harry must find the courage to prove himself against the darkest wizard of all.”
The cast includes Dominic McLaughlin as Harry Potter, Arabella Stanton as Hermione Granger, Alastair Stout as Ron Weasley, John Lithgow as Albus Dumbledore, Janet McTeer as Minerva McGonagall, Paapa Essiedu as Severus Snape, Nick Frost as Rubeus Hagrid, Rory Wilmot as Neville Longbottom, and Lox Pratt as Draco Malfoy, along with a much larger supporting ensemble filling out Hogwarts.
The internet's response to the trailer has been anything but unanimous. The footage revisits plenty of familiar, beloved moments, the dining hall welcome, the sorting hat, the Mirror of Erised, the mandrake potting lesson, and the troll in the dungeon, with visual designs that closely echo the 2001 film. That resemblance is exactly what's drawing criticism from some viewers, who question the point of the series if it's simply retelling the same story with new faces, especially with ongoing backlash tied to author J.K. Rowling's public statements. Other commenters on X have argued the show should have dug into material the films skipped entirely, while some critics simply think the new cast doesn't hold up. There's also been pushback over how visually dark and muted the trailer looks compared to the brighter, warmer tone of the original movie.
Even with the criticism, there's genuine excitement out there too, and it's hard to argue against how well Dominic McLaughlin seems to be embodying Harry based on the footage alone. HBO has framed the series as a chance to tell a fuller, more layered version of the story than any single film could manage, hitting every beloved beat while digging in deeper along the way.
The Countdown to Christmas Is On, Whether Fans Are Ready or Not
Between the Radcliffe rumor, this round of new casting, and a trailer already fueling plenty of online debate, HBO's Harry Potter series is pulling in exactly the kind of attention a project this size needs ahead of its Christmas 2026 premiere. Whether the finished product wins over the skeptics or simply confirms their concerns won't really be clear until the first season actually drops, but based on how much conversation this is already generating, interest in the adaptation shows no signs of slowing down.
Are you hoping the Daniel Radcliffe rumor turns out to be true, or does the new trailer make you think this series didn't need to happen at all? Let us know in the comments what you're most curious about heading into Harry Potter and the Philosopher's Stone.
