While promoting Steve at the Toronto International Film Festival, Cillian Murphy sat with Josh Horowitz and addressed the fan chatter tying him to Voldemort in the Harry Potter reboot. He was clear. It is not a thing he is involved in.
What Murphy actually said
Asked point blank about the casting buzz, Murphy replied: “No. No. I mean, genuine… No, I don’t know anything about that.”
He then nodded to the benchmark already set for the Dark Lord, calling Ralph Fiennes “an absolute acting legend” and adding, “Good luck to whoever is going to fill those.”
Murphy also joked about the look the part requires when Horowitz mentioned the character’s noseless design, quipping that he is “very attached” to his own.
What do we know about HBO's Harry Potter show?
Credit HBO
HBO’s Harry Potter series is already filming at Warner Bros. Studios Leavesden after kicking off on July 14, 2025. Succession alum Francesca Gardiner is the showrunner and writer, with Mark Mylod directing multiple episodes. Season 1 adapts Philosopher’s Stone in full as part of a faithful, book-by-book retelling planned to unfold over roughly a decade. The new trio is Dominic McLaughlin, Arabella Stanton, and Alastair Stout as Harry, Hermione, and Ron, with John Lithgow as Dumbledore, Paapa Essiedu as Snape, Janet McTeer as McGonagall, and Nick Frost as Hagrid. J. K. Rowling is an executive producer. HBO is targeting a 2027 premiere.
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