Jason Isaacs praises Johnny Flynn as new Lucius Malfoy in HBO Harry Potter series following HBO’s announcement that Flynn will take on the iconic role. The news comes as Isaacs warmly supports the casting and shares his excitement with fans, highlighting Flynn’s talents and anticipating what he will bring to this new adaptation.
Prominent New Castings for HBO’s Harry Potter Series Unveiled
HBO’s much-awaited television adaptation of Harry Potter has cast Johnny Flynn as Lucius Malfoy and Lox Pratt as Draco Malfoy, signaling a new chapter for the franchise. Bel Powley and Daniel Rigby have also joined the cast as Petunia and Vernon Dursley, respectively, while Katherine Parkinson is set to play Molly Weasley, Ron’s mother. This ensemble brings together a mix of established and emerging actors who will reinterpret familiar characters for a new generation of viewers.
Jason Isaacs Welcomes Flynn’s Casting with Enthusiasm
Reacting to HBO’s casting decision, Jason Isaacs, who portrayed Lucius Malfoy throughout the Harry Potter films, released a positive video message on Instagram. In his message, Isaacs emphasizes his firsthand knowledge of Flynn’s talents, having worked with him on the 2021 war film Operation Mincemeat. Isaacs expresses genuine excitement, acknowledging Flynn’s artistic range and positive character offscreen.
“I just heard that the great Johnny Flynn with be playing Mr. Malfoy in the new HBO TV series, which is sensational news for Harry Potter fans, which I want because Johnny is a brilliant actor. Irritatingly, he’s a brilliant musician as well, and a really lovely guy…and I can’t wait to see what he comes up with. Johnny, if you’re watching this, enjoy yourself.”
—Jason Isaacs, Actor
Isaacs expanded his praise on X, formerly Twitter, echoing his strong support for Flynn’s appointment to the role, and injecting humor about Flynn’s musical prowess.

“A fantastic actor, a lovely man and, irritatingly, a rather brilliant musician too. Couldn’t have handed the snake-topped baton on to anyone better. Just please don’t make him sing…”
—Jason Isaacs, Actor
The well-known actor’s heartfelt comments underscore not only his respect for Johnny Flynn’s artistic abilities but also his appreciation for the positive change in the franchise. His remarks are bolstered by their time working together professionally and his awareness of Flynn’s range as an actor and musician.
The Legacy and Transition of the Lucius Malfoy Character
Johnny Flynn, whose body of work includes portraying David Bowie in the film Stardust, now steps into the shoes of Lucius Malfoy, a complex character long associated with Isaacs. Flynn’s casting not only has Isaacs’ blessing but is backed by their personal and professional rapport. The continuity between the original films and the upcoming series is further supported by Isaacs’ encouragement, reflecting trust in Flynn’s ability to carry on the legacy.
Isaacs has also spoken about how the Harry Potter film series shaped his career, recalling moments with Daniel Radcliffe that influenced his portrayal of Lucius Malfoy’s accent. Recently, Isaacs supported Tom Felton’s return as Draco Malfoy in the Broadway production of Harry Potter and the Cursed Child, demonstrating his ongoing connection with the franchise and its actors.
Although Isaacs once expressed mixed feelings about not joining the Harry Potter reboot himself, his latest response to HBO’s casting choices highlights his overall satisfaction, especially regarding who will inherit his former role.
Flynn’s Role Could Arrive Sooner in the HBO Adaptation
Isaacs’ reaction to the casting news has set an optimistic tone for the series, mixing encouragement with playful advice for Flynn. In his video, he jokes about Dobby’s betrayal of Lucius Malfoy and cautions HBO not to showcase Flynn’s musical side, referencing the actor’s broad talents. Such engagement from a former cast member has piqued the interest of Harry Potter fans, many of whom now eagerly await Flynn’s interpretation of Lucius.
In the original book series and films, Lucius Malfoy emerges in the second installment. However, early casting announcements suggest that the HBO series might introduce Lucius in the first season, thereby building his importance earlier in the narrative. This shift signals a new storytelling approach, giving audiences a fresh perspective on the Malfoy family and their role in the evolving story.
Key Cast Members for the HBO Series
In addition to Johnny Flynn’s high-profile casting, several other actors have been announced for pivotal roles. Dominic McLaughlin is slated to play Harry Potter, bringing a new face to the central protagonist. Janet McTeer joins as Minerva McGonagall, while John Lithgow will take on the role of Albus Dumbledore. Nick Frost rounds out the main cast as Hagrid. Together, these actors will aim to recapture the magic of J.K. Rowling’s original series for television audiences.
Why Isaacs’ Approval Holds Significance for the Franchise
The widespread attention surrounding Jason Isaacs praises Johnny Flynn as new Lucius Malfoy in HBO Harry Potter series underscores the importance of continuity and endorsement in major franchise reboots. Isaacs’ sincere approval not only reassures longtime fans but also builds anticipation for a new interpretation of an iconic character. With familiar names like Lucius Malfoy, Draco Malfoy, and Molly Weasley returning in fresh portrayals, HBO’s adaptation stands poised to captivate both loyal followers and newcomers to the wizarding world.