The Definitive List: Every Actor Confirmed For The HBO Harry Potter Series (2027 Release)

The Wizarding World is officially being reborn. As of December 15, 2025, the highly anticipated HBO Original Harry Potter television series has moved beyond speculation, with principal photography well underway and a staggering list of confirmed cast members now public. This new, decade-spanning, "faithful adaptation" promises to delve deeper into the beloved books, dedicating an entire season to each of J.K. Rowling's seven novels, and the casting announcements have sent shockwaves across the fandom, mixing fresh-faced newcomers with established, award-winning veterans.

After a global search that saw over 30,000 actors audition for the iconic roles, the new Golden Trio—Harry Potter, Ron Weasley, and Hermione Granger—have been selected, alongside a star-studded lineup for the Hogwarts staff and the infamous Malfoy and Dursley families. The series, which is currently slated for a 2027 premiere on HBO and Max, is being helmed by a team of television heavyweights, including showrunner Francesca Gardiner and director Mark Mylod, both known for their work on HBO's critically acclaimed drama, Succession.

The New Golden Trio: Complete Cast & Biographical Profiles

The core of the Harry Potter reboot rests on the shoulders of three young, relatively unknown actors, a deliberate choice echoing the original film series. Their selection, announced in May 2025, marks the beginning of a new era for the franchise.

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Dominic McLaughlin as Harry Potter

• Role: Harry Potter, The Boy Who Lived.
• Nationality: Scottish.
• Age/Birth Year: Believed to be born circa 2013–2014.
• Career Highlights: McLaughlin is a rising star who trained at Performance Academy Scotland. Prior to his massive casting, he was known for roles in the BBC action-adventure series Gifted and various local theatre productions, including a run of Macbeth. His casting was the most scrutinized, with producers praising his ability to capture Harry's quiet intensity and inherent goodness.

Arabella Stanton as Hermione Granger

• Role: Hermione Granger, The Brightest Witch of Her Age.
• Nationality: British.
• Born: April 11, 2014.
• Career Highlights: Stanton is an accomplished young actress and singer. Her most notable pre-Harry Potter role was playing the title character, Matilda Wormwood, in Matilda the Musical in London's prestigious West End from 2023 to 2025. This musical theatre background suggests a powerful stage presence and vocal clarity perfect for Hermione's commanding intellect.

Alastair Stout as Ron Weasley

• Role: Ron Weasley, Harry's best friend.
• Nationality: British.
• Age/Birth Year: Believed to be between 9 and 11 years old.
• Career Highlights: Stout is making his major screen debut in the HBO series. His casting follows an extensive search for a young actor who could naturally embody Ron’s humor, loyalty, and slightly awkward charm. His profile notes his natural red/titian hair color and a Northern accent, fitting the Weasley family's distinct look and feel.

Hogwarts Staff and Key Adult Cast: A BAFTA and Olivier-Winning Lineup

The adult cast provides the series with a foundation of theatrical and cinematic gravitas. The choices for Dumbledore, McGonagall, and Snape demonstrate a clear intention to elevate the dramatic weight of the series, moving toward a more prestige television feel.

John Lithgow as Albus Dumbledore

• Role: Albus Dumbledore, Headmaster of Hogwarts.
• Nationality: American.
• Born: October 19, 1945.
• Career Highlights: A legendary actor with two Golden Globes, six Emmy Awards, and two Oscar nominations. Lithgow is renowned for his versatility, from the comedic alien in 3rd Rock from the Sun to the terrifying villain in Dexter and Winston Churchill in The Crown. His classical training at Harvard and the London Academy of Music and Dramatic Art (LAMDA) makes him a towering choice for the enigmatic Headmaster.

Paapa Essiedu as Severus Snape

• Role: Severus Snape, Potions Master and Head of Slytherin.
• Nationality: English.
• Born: June 11, 1990.
• Career Highlights: Essiedu is a classically trained and Olivier Award-nominated actor, celebrated for his work in theatre and television. He is known for his compelling performances in shows like I May Destroy You and Gangs of London. His casting as Snape is one of the most exciting and unexpected choices, promising a fresh, intense portrayal of the complex character.

Janet McTeer as Minerva McGonagall

• Role: Minerva McGonagall, Deputy Headmistress and Head of Gryffindor.
• Nationality: English.
• Born: August 5, 1961.
• Career Highlights: McTeer is a powerhouse actress, an OBE recipient, and a graduate of RADA. She has an Oscar nomination and a Golden Globe win to her name, with major roles in films like Tumbleweeds and television series such as Ozark. Her gravitas and sharp delivery are perfectly suited to the formidable Transfiguration professor.

Katherine Parkinson as Molly Weasley

• Role: Molly Weasley, Matriarch of the Weasley family.
• Nationality: English.
• Career Highlights: A BAFTA-winning actress best known for her iconic comedic role as Jen Barber in The IT Crowd. Parkinson’s blend of warmth and comedic timing makes her an inspired choice to portray the fiercely protective and loving Molly Weasley.

The Malfoys, Dursleys, and Other First-Year Students

The series has already cast other critical characters who will feature heavily in the first season, based on Harry Potter and the Philosopher's Stone. The casting directors, Lucy Bevan and Emily Brockmann, have clearly prioritized talent across a diverse range of experience.

Key Supporting Cast List

• Lucius Malfoy: Johnny Flynn
• Draco Malfoy: Lox Pratt
• Vernon Dursley: Daniel Rigby
• Petunia Dursley: Bel Powley
• Cornelius Fudge: Bertie Carvel
• Professor Filius Flitwick: Warwick Davis (Reprising his role from the original films, a comforting nod to the franchise's legacy.)
• Seamus Finnigan: Leo Earley
• Parvati Patil: Alessia Leoni
• Lavender Brown: Sienna Moosah

The announcement of Daniel Rigby and Bel Powley as the Dursley parents, Vernon and Petunia, suggests a darker, more complex take on the family dynamic, as both actors are known for their dramatic range and ability to portray unsettling characters. Similarly, Bertie Carvel’s casting as Minister of Magic Cornelius Fudge adds another layer of prestige, as Carvel is an Olivier and Tony Award-winning stage veteran.

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Production Status and Topical Authority Details

The Max Harry Potter series is a massive undertaking, with production details confirming its status as a flagship project for Warner Bros. Discovery.

The Creative Team and J.K. Rowling's Involvement

The series is being helmed by showrunner and writer Francesca Gardiner, who previously worked on *His Dark Materials* and the Emmy-winning series *Killing Eve* and *Succession*. She is joined by executive producer and director Mark Mylod, another *Succession* veteran. This creative team, known for high-stakes, character-driven drama, signals a shift towards a more mature and detailed narrative adaptation.

The project's most discussed element remains J.K. Rowling's involvement. She is confirmed to be serving as an executive producer alongside David Heyman, Neil Blair, and Ruth Kenley-Letts. HBO's CEO has stated that Rowling remains "fairly involved," particularly in the selection of the writer, director, and actors, ensuring the series remains a "faithful adaptation" of her original novels. This direct creative oversight is a key point of topical authority for the new series.

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Release Window and Filming Location

The official release date for the first season of the Harry Potter reboot is projected for 2027. This timeline accounts for the ambitious production schedule, which officially began principal photography in July 2025 at Leavesden Studios in Hertfordshire, England—the same location where the original film saga was shot. The commitment to a season-per-book format means fans can expect a long-term series, potentially spanning a decade, offering an unprecedented level of detail compared to the original films.

The early casting announcements and the commencement of filming confirm that the Max Harry Potter series is moving forward quickly, promising a fresh, in-depth exploration of the Wizarding World for a new generation of fans.