
HBO’s Harry Potter Reboot Confirms Six Major Cast Members, Including Dumbledore and Snape
John Lithgow, Paapa Essiedu, and Janet McTeer Lead the Lineup in HBO’s Ambitious Decade-long Harry Potter Series Adaptation.
After nearly a year of speculation, HBO has officially confirmed six actors joining the much-anticipated Harry Potter TV series. The series, which will adapt each of J.K. Rowling’s seven books into individual seasons, is set to span a decade and promises a “faithful adaptation” of the beloved source material.

Among the biggest names confirmed is Oscar-nominated actor, 79, who will take on the iconic role of Albus Dumbledore. Lithgow admitted the casting came as a “total surprise,” calling it a defining moment for the later stage of his career.
Meanwhile, Paapa Essiedu, known for I May Destroy You and The Lazarus Project, will replace the late Alan Rickman as Potions Master Severus Snape—a casting choice that had long been speculated.
Janet McTeer, 63, a Golden Globe-winning actress with an extensive theater and screen background, has been tapped to play Professor Minerva McGonagall. She takes over a role once held by Dame Maggie Smith, edging out other contenders like Sharon Horgan and Rachel Weisz.

Nick Frost (53), widely recognized for his comedic roles, has been confirmed as half-giant Rubeus Hagrid. Luke Thallon, a lesser-known but critically praised stage actor, will portray the timid yet pivotal Professor Quirinus Quirrell.
Rounding out the current cast list is Paul Whitehouse, 66, who will take on the role of grumpy caretaker Argus Filch.
This casting reveal comes nearly a year after HBO Max confirmed the project on April 12, 2023.
Showrunner Francesca Gardiner and executive producer Mark Mylod praised the newly announced cast, describing them as an exceptional group well-suited to reimagine the familiar roles for a new generation of viewers.

Despite the excitement, the project faces its share of controversy. The involvement of J.K. Rowling as executive producer has reignited calls for boycotts due to her widely criticized comments about the transgender community. Activist group Wizarding News reiterated its position, vowing to protest any production associated with Rowling.
Fans are also divided over the necessity of the reboot. While some welcome the chance for a closer-to-the-books adaptation, others have labeled the move uncreative. Some have expressed preference for spin-offs exploring the Marauders, Tom Riddle, or the Order of the Phoenix instead.
Casting for the trio at the heart of the story—Harry, Ron, and Hermione—remains unannounced. An open casting call earlier this year drew over 32,000 auditions from children across the UK and Ireland, reflecting the show’s high profile and long-term vision.
Rumors continue to swirl around other major roles. No official casting has been announced for Lord Voldemort, but speculation has pointed toward Cillian Murphy as a frontrunner for the Dark Lord.
At a recent fan convention, David Tennant—who portrayed Barty Crouch Jr. in The Goblet of Fire—spoke cautiously about the reboot. While acknowledging the lasting appeal of the franchise, he hinted that his involvement in the wizarding world was likely behind him, and alluded to creative tensions that may keep him from returning.
Asked whether he would reprise his role as Barty Crouch Jr., Tennant remarked, “My contribution has probably been made,” subtly hinting at tension behind the scenes. He added, “I’m told there’s an executive producer who doesn’t love me on that show,” likely referencing Rowling’s public disagreements with his pro-trans stance.
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