Cillian Murphy, known for his work in Peaky Blinders and Oppenheimer, has publicly denied rumours linking him to the character of Voldemort in the upcoming Harry Potter television adaptation by HBO. Despite widespread speculation and comments from original Voldemort actor Ralph Fiennes earlier this year, Murphy has made it clear he will not be portraying the iconic Hogwarts villain.
Background of the Rumour and Ralph Fiennes’ Comments
The speculation around Murphy taking the role gained traction partly due to Ralph Fiennes, who originally played Voldemort in the Harry Potter film series. In January, Fiennes appeared to endorse Murphy as a potential successor by saying,
“I’m told [my shoes] are already filled, aren’t they?”
and added,
“I’ve already said, I think Cillian Murphy is very good. He’s a very good choice.”
Fiennes also praised Murphy as a “fantastic, great actor” when the rumour initially surfaced in 2025, which seemed to confirm the actor’s involvement.
Cillian Murphy’s Clear Denial of the Role
Despite the mounting reports, Murphy firmly dismissed the claims during a recent interview with The Times. When asked directly if he would take on the role of Voldemort, Murphy stated, “I’m categorically not,” and requested,
“Can you make that the headline?”
His determination to end the speculation was evident, reaffirming that he has no plans to join the Harry Potter reboot in that capacity.
Murphy had previously addressed the rumour in 2025 during a podcast with Josh Horowitz, laughing and saying, “No,” followed by,
“I mean, genuinely… I don’t know anything about that.”
Fan Reactions to Murphy’s Denial
Fans of Murphy expressed support online for his decision to reject the role amid the controversy surrounding the reboot. Comments reflecting appreciation included,
“Finally an actor with a backbone,”
and,
“I’d also be p***** if people thought I would stoop that low as well.”
Another supporter wrote, “Thank you Cillian,” accompanied by a transgender pride flag emoji, underscoring the sensitive context in which the casting rumours took place.
Context of the Harry Potter Reboot and Associated Controversies
The HBO series is assembling a strong cast with talents such as Nick Frost, John Lithgow, Paapa Essiedu, Janet McTeer, and Johnny Flynn taking significant roles. However, the reboot has faced backlash due to the involvement of author JK Rowling as an executive producer. Rowling’s public stance on gender identity issues, particularly her “gender-critical” views relating to the transgender community, has stirred persistent criticism.
Rowling established The J.K. Rowling Women’s Fund in 2025, which offers
“legal funding support to individuals and organisations fighting to retain women’s and girls’ sex-based rights.”
This fund arose after a UK Supreme Court ruling concerning the definitions of “woman” and “sex” within the 2010 Equality Act, which were interpreted to refer to biological sex, effectively excluding trans women. Rowling financially supported this legal case, which was brought forward by the gender-critical organisation For Women Scotland.
Implications and What Lies Ahead for the Series
The casting developments and the surrounding controversies highlight the tensions the reboot faces among its audience. Murphy’s refusal to participate as Voldemort adds a notable layer of complexity to the casting narrative. As the production progresses, it remains to be seen how casting decisions and Rowling’s involvement will influence public reception and the series’ success. The ongoing discussions around representation and identity issues continue to shape the conversation around this high-profile adaptation.
