HBO’s upcoming Harry Potter television series has finally named its new cast, with Dominic McLaughlin, Arabella Stanton and Alastair Stout set to play the iconic trio. The show, described as a faithful adaptation of J.K. Rowling’s novels, is expected to arrive in late 2026, though some uncertainty remains around the exact premiere date.
The reboot, which will stream on HBO Max, marks the first time the story will be told in serialised form, with the first season reportedly covering Harry Potter and the Philosopher’s Stone across eight episodes. Alongside the young leads, a host of experienced actors have been cast in adult roles, including John Lithgow as Albus Dumbledore and Paapa Essiedu as Severus Snape.
Warwick Davis has been announced as the first returning actor from the original film series, though his specific role has not yet been disclosed. The casting announcements have generated widespread attention, and fans are eagerly awaiting further details on remaining characters, particularly the villains.
Harry Potter TV series release date
The most consistently reported launch date for the series is 25 December 2026, according to multiple outlets including USA Today and BBC News. However, some sources have cited a 2027 expectation from HBO leadership, indicating a degree of uncertainty around the final timing. The series will premiere on HBO Max and be available on HBO linear channels.
Dominic McLaughlin
Arabella Stanton
Alastair Stout
John Lithgow
- The new Harry Potter TV series is set to premiere in 2026 on HBO Max.
- Dominic McLaughlin, Arabella Stanton and Alastair Stout are the new trio.
- John Lithgow, Janet McTeer, Paapa Essiedu and Nick Frost join as adult characters.
- Warwick Davis is the first returning actor from the original films.
- Casting has been announced for main roles; Voldemort and other villains remain unrevealed.
| Role | Actor | Status |
|---|---|---|
| Harry Potter | Dominic McLaughlin | Confirmed |
| Hermione Granger | Arabella Stanton | Confirmed |
| Ron Weasley | Alastair Stout | Confirmed |
| Albus Dumbledore | John Lithgow | Confirmed |
| Minerva McGonagall | Janet McTeer | Confirmed |
| Severus Snape | Paapa Essiedu | Confirmed |
| Rubeus Hagrid | Nick Frost | Confirmed |
New Harry Potter cast 2026
The central trio of the series has been cast with relative newcomers. Dominic McLaughlin, a young actor with limited screen credits, will take on the role of Harry Potter. Arabella Stanton will play Hermione Granger, and Alastair Stout will portray Ron Weasley. All three were selected through an open casting call process that began in 2024, as reported by The Independent.
Dominic McLaughlin as Harry Potter
McLaughlin’s casting was officially confirmed alongside the rest of the main trio. Multiple sources, including IMDb and Variety, list him as the actor playing the Boy Who Lived. No prior major roles have been reported for McLaughlin, making this a breakout part.
Arabella Stanton as Hermione Granger
Stanton will bring the bright and determined Hermione to life. According to BBC Newsround, she is a relatively new face in television, having been cast after a wide search for young actors.
An open casting call for the three lead roles was announced in 2024, with thousands of hopefuls auditioning. The final selections were made by the production team in early 2025.
New Harry Potter cast Snape
Paapa Essiedu, a BAFTA-nominated British actor known for his stage and screen work, has been cast as Severus Snape. His casting was widely reported by BBC News and Wikipedia. Essiedu’s previous roles include I May Destroy You and The Lazarus Project.
Who is playing Severus Snape in the new series?
The role of the complex Potions Master will be portrayed by Paapa Essiedu, replacing the late Alan Rickman. Essiedu’s casting has been met with positive responses, with many noting his ability to bring depth to morally ambiguous characters.
Essiedu trained at the Royal Academy of Dramatic Art and has performed with the Royal Shakespeare Company. He is also known for his role in the HBO series I May Destroy You.
New Harry Potter cast Voldemort
As of the latest reports, the actor who will play Lord Voldemort has not been announced. Similarly, the roles of Lucius Malfoy and Draco Malfoy have been cast, but the Dark Lord remains unconfirmed.
Who is playing Voldemort?
No official casting for Voldemort has been made public. Reports suggest the production is keeping the role under wraps, and it may be announced closer to the premiere.
Lucius Malfoy and Draco Malfoy
Johnny Flynn has been cast as Lucius Malfoy, while Lox Pratt will play Draco Malfoy, according to USA Today and Variety. Flynn is known for his roles in Emma and Stardust, while Pratt is a newcomer.
The identity of the actor playing Voldemort has not been officially confirmed by HBO. Any speculation about the role should be treated as unverified until an official announcement is made.
When were the cast announcements made?
The timeline of key announcements provides context for the series’ development. Below are the major milestones as reported by multiple sources.
- 2021 – HBO officially announces plans for a Harry Potter television series.
- 2024 – An open casting call is launched for the roles of Harry, Ron and Hermione.
- Early 2025 – Main cast for the trio is reportedly finalised, though not yet publicly announced.
- Late 2025 – John Lithgow, Paapa Essiedu, Nick Frost and other adult actors are confirmed in their roles.
- 2026 – Additional cast members, including Janet McTeer, Luke Thallon, Lox Pratt and Johnny Flynn, are revealed.
- 25 December 2026 – Most widely cited premiere date, though some sources suggest a 2027 launch.
Which cast members are confirmed vs rumoured?
Several castings have been officially confirmed by HBO and widely reported by reputable outlets. Others remain unconfirmed or are based on unofficial reports. The table below separates established information from what is still unclear.
Established information
- Dominic McLaughlin as Harry Potter
- Arabella Stanton as Hermione Granger
- Alastair Stout as Ron Weasley
- John Lithgow as Albus Dumbledore
- Paapa Essiedu as Severus Snape
- Nick Frost as Rubeus Hagrid
- Janet McTeer as Minerva McGonagall
- Luke Thallon as Professor Quirrell
- Lox Pratt as Draco Malfoy
- Johnny Flynn as Lucius Malfoy
- Katherine Parkinson as Molly Weasley
- Rory Wilmot as Neville Longbottom
- Amos Kitson as Dudley Dursley
- Anton Lesser as Garrick Ollivander
Information that remains unclear
- Who will play Lord Voldemort
- Whether any other original film actors will return beyond Warwick Davis
- Exact premiere date (2026 or 2027)
- Full details of the episode count (eight episodes reported but not confirmed)
Why is HBO making a Harry Potter TV series?
The decision to reboot the Harry Potter story as a television series rather than a film was driven by the desire to explore the books in greater depth. According to Variety, the serialised format allows for each book to be adapted over multiple episodes, providing more room for subplots and character development. The show is described as a faithful adaptation, with the first season covering Harry Potter and the Philosopher’s Stone.
The production budget is reported to be substantial, though exact figures have not been disclosed. Showrunner remarks have emphasised a commitment to staying true to J.K. Rowling’s original novels, while offering a fresh visual interpretation.
The series is expected to run for several seasons, potentially covering all seven books. This long-term commitment reflects HBO’s confidence in the enduring popularity of the franchise.
Where can I find official cast announcements?
Official announcements about the cast have been made through HBO’s press channels and reported by major entertainment news outlets. The most reliable sources include:
“Warwick Davis has been announced as the first returning cast member from the original movies.” – GQ Magazine
GQ Magazine
“John Lithgow will play Albus Dumbledore.” – Wikipedia
Wikipedia
“Paapa Essiedu is set to portray Severus Snape.” – Variety
Variety
For the most up-to-date information, fans are encouraged to follow official HBO social media channels and subscribe to press releases from Warner Bros. Discovery.
What we know about the new Harry Potter cast so far
The new Harry Potter cast has been largely revealed, with the trio of Dominic McLaughlin, Arabella Stanton and Alastair Stout leading the series. John Lithgow, Paapa Essiedu and Nick Frost bring star power to the adult roles, while Janet McTeer, Johnny Flynn and others round out the supporting cast. The only major role yet to be cast is Lord Voldemort. The series is expected to debut in late 2026, though some uncertainty remains. For a complete overview of the Harry Potter TV series and its development, keep checking official sources.
Frequently asked questions
Is the new Harry Potter series a reboot or a continuation?
It is a faithful adaptation of the original novels, not a continuation of the films.
Will any original cast members return?
Warwick Davis is confirmed to return. Others have not been announced.
How many seasons will the series have?
It is planned to cover each book over multiple seasons, likely 7 seasons.
Where can I watch the Harry Potter TV series?
It will stream on HBO Max and be available on HBO linear channels.
When is the release date?
The most reported date is 25 December 2026, but some sources say 2027.
Who is playing Harry Potter?
Dominic McLaughlin has been cast as Harry Potter.
Who is playing Hermione Granger?
Arabella Stanton will play Hermione Granger.
Who is playing Ron Weasley?
Alastair Stout has been cast as Ron Weasley.
Who is playing Severus Snape?
Paapa Essiedu will portray Severus Snape.
Who is playing Voldemort?
The actor for Voldemort has not been announced yet.
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Toby Marsh is Senior Reporter at Castradar.uk, covering film and TV stories across the UK.