The new HBO Harry Potter TV series trailer is here. See the cast compared to the original film actors and the biggest fan reactions.
- April 27, 2026
AceShowbiz - The highly anticipated Harry Potter TV series from HBO recently unveiled its first trailer, igniting excitement among both longtime fans and a new generation eager to explore the Wizarding World. The production values appear to match the cinematic quality that millions fell in love with during the original film franchise, showcasing meticulous set designs of Hogwarts as well as the magical and Muggle environments surrounding it.
Despite the impressive visuals, one of the biggest challenges for devoted fans will be adjusting to the new faces portraying beloved characters. The casting decisions have sparked significant online discussion, with some actors immediately embraced and others facing skepticism or controversy. At least one casting choice has even attracted death threats, underscoring the passionate investment audiences have in the franchise's legacy.
Below we take a detailed look at the new HBO series cast members alongside their movie counterparts, examining how each recast compares to the original portrayals that defined the series for over a decade.
Harry Potter
Daniel Radcliffe famously originated the role of Harry Potter in the blockbuster film adaptations, becoming synonymous with the iconic character. Now, the younger actor Dominic McLaughlin will step into the role for the HBO series. While McLaughlin is relatively unknown to fans, he faces the daunting task of living up to Radcliffe’s definitive portrayal. Radcliffe himself is currently starring in the comedy series The Fall and Rise of Reginald D. Hunter, sharing the screen with Tracy Morgan.
Ron Weasley
Rupert Grint’s portrayal of Ron Weasley made the character a fan favorite in the original films. The new series passes the torch to Alastair Stout, a newcomer who visually fits the role well. Stout’s expressive “mind-blown” gesture in the first trailer has already won him some early fan approval. Meanwhile, Grint has moved on to notable work in M. Night Shyamalan’s Apple TV supernatural horror series Servant.
Hermione Granger
Emma Watson’s Hermione Granger became a cultural icon, extending her influence beyond acting into fashion and activism. For the HBO series, stage actress Arabella Stanton makes her screen debut as Hermione, stepping into a role with massive expectations. Watson has largely stepped back from acting following her roles as Belle in Disney’s live-action Beauty and the Beast and Margaret March in Greta Gerwig’s Little Women adaptation in 2019.
Draco Malfoy
Tom Felton’s Draco Malfoy was a standout character in the films, capturing the essence of Harry’s Hogwarts rival with charm and menace. The series casts Lox Pratt, known for Lord of the Flies, to carry on as Draco, promising to embody the complex antagonist that fans love to hate.
Albus Dumbledore
The role of Hogwarts’ headmaster has seen several actors over the years. The original Dumbledore actor, Richard Harris, passed away after the second film. Michael Gambon then took over for the remainder of the film series, while Jude Law portrayed a younger Dumbledore in the Fantastic Beasts films. Now, Jon Lithgow, known for roles in 3rd Rock From the Sun and Dexter, has been cast as Dumbledore in the HBO series. Fans have generally responded positively to this choice.
Minerva McGonagall
Professor McGonagall, Hogwarts’ stern but caring Transfiguration teacher, was memorably played by the late Maggie Smith in the films. The TV adaptation casts Janet McTeer, recognized for her work on Jessica Jones and Ozark, to take on this pivotal role.
Severus Snape
One of the most challenging recasts is that of Severus Snape, a character whose complexity was famously captured by Alan Rickman. Rickman’s performance is often regarded as definitive, making the new casting choice highly scrutinized. The HBO series has cast Paapa Essiedu, known for Black Mirror and The Lazarus Project, as Snape. Essiedu’s background as a UK stage actor is strong, but his casting has sparked controversy because of his race, with some critics responding with hostility and even threats. The portrayal of Snape’s layered story will be closely watched as the series unfolds.
Rubeus Hagrid
The gentle giant Hagrid was brought to life by Robbie Coltrane in the films, becoming a beloved character for fans. The HBO series casts Nick Frost, known for Shaun of the Dead and Star Wars: Skeleton Crew, to fill those large boots and provide a warm guardian figure for Harry’s first steps into the Wizarding World.
Uncle Vernon and Aunt Petunia Dursley
Richard Griffiths and Fiona Shaw portrayed the unpleasant Dursley siblings who made Harry’s early life difficult. The new series reimagines these roles with Daniel Rigby, known from Black Mirror, and Bel Powley, who appeared in The Morning Show. Their challenge will be to recreate the classic comedic yet antagonistic dynamic that made the Dursleys memorable.
Dudley Dursley
Harry’s spoiled cousin Dudley was portrayed by Harry Melling in the films, often serving as a foil to Harry’s character with his bullying antics. The new series will feature young actor Amos Kitson in the role, continuing to depict Dudley as the troublesome family member Harry must endure before his journey to Hogwarts begins.
Release and Fan Reactions
The Harry Potter TV series is scheduled to premiere on HBO and HBO Max on Christmas Day, December 25th. Fans are already sharing their excitement and opinions on casting choices, with lively discussions ongoing at platforms like the ComicBook Forum. As more characters and actors are revealed, updates on casting and performances will continue to emerge.
The Harry Potter TV adaptation aims to honor the beloved source material while introducing fresh interpretations of iconic characters. Its success will depend largely on how the new cast resonates with viewers who hold the original film portrayals close to their hearts.