28 Years Later Cast: Jodie Comer, Aaron Taylor-Johnson & More

Danny Boyle is back with a sequel to 28 Days Later, and the cast is now confirmed. Jodie Comer, Aaron Taylor-Johnson, and Ralph Fiennes lead the lineup for 28 Years Later, with Cillian Murphy involved as an executive producer—but whether the original Jim will appear on screen remains a closely guarded secret.

Director: Danny Boyle · Lead Stars: Jodie Comer, Aaron Taylor-Johnson, Ralph Fiennes · Release Year: 2025 · Key Roles: Jodie Comer as Isla, Aaron Taylor-Johnson as Jamie · IMDb: tt10548174

Is Cillian Murphy going to be in 28 Years Later?

The question fans really want answered is whether Cillian Murphy will appear on screen in 28 Years Later—and the official record offers only a partial answer. As confirmed by industry coverage from the Motion Picture Association, Murphy signed on as an executive producer when the project received its greenlight in January 2024. His involvement behind the camera is solid.

Whether that role extends to acting remains officially unconfirmed. Reports describe any potential on-screen participation as being kept in “top-secret” conditions. Sources close to the production have suggested he might appear, but no definitive confirmation has emerged alongside the April 2024 casting announcements.

Cillian Murphy’s role as Jim

Murphy originated the character of Jim in the 2002 original, a role that helped define his career before his Oscar win for Oppenheimer. His absence from the 2007 sequel 28 Weeks Later has been a point of fan curiosity ever since—a gap he has never fully explained in public.

Reasons for past absences like 28 Weeks Later

Murphy did not appear in 28 Weeks Later, the 2007 follow-up directed by Juan Fresnadillo. At the time, scheduling conflicts and the standalone nature of the sequel’s story were cited as reasons. Fresnadillo chose to introduce new characters rather than bring Jim back, a creative decision that left fans wondering if the original protagonist had survived.

Whether 28 Years Later addresses that narrative gap—or whether Murphy’s alleged involvement would mean a proper return—remains to be seen. For now, fans have to settle for his producer credit and the possibility, rather than the certainty, of his return to the franchise.

Who plays the big zombie in 28 Years Later?

Supporting cast details have been slower to surface than the headline-grabbing lead announcements, but some specifics are emerging. Chi Lewis-Parry, a physical performer known for demanding physical roles, has been linked to the film in reports from industry coverage.

Chi Lewis-Parry’s casting

Chi Lewis-Parry has appeared in physical roles across various productions, typically involving prosthetics or body modification. His casting in 28 Years Later reportedly puts him in the frame as the “big zombie”—the physically imposing infected character that would anchor the film’s updated take on the infected.

Role details

The original 28 Days Later featured memorable infected performances, and the sequel appears to be following a similar casting philosophy: real physical performers over CGI or conventional stunt work. Specific scenes or character motivations remain undisclosed, but the casting direction suggests a return to practical infected work.

Additional supporting roles—from young Jimmy (Rocco Haynes) to other cast members appearing in the IMDb listings—suggest a larger ensemble than the three confirmed leads, though official sources have not released a complete cast breakdown.

Who is the Irish guy in 28 Years Later?

“The Irish guy” in fan discussions almost certainly refers to Cillian Murphy, whose Irish nationality and iconic role as Jim make him instantly recognizable to the franchise’s audience. Murphy was born in Douglas, Ireland, and his connection to the series dates back to its 2002 beginning.

Cillian Murphy connection

The speculation stems from more than just his nationality. Murphy’s presence at the project’s announcement, combined with rumors that he might appear on screen, has kept him at the center of fan theories. His confirmed role as executive producer gives him creative involvement beyond a typical production credit.

Other Irish cast

While Murphy is the most prominent Irish actor associated with the franchise, other Irish performers may appear in the film. Detailed cast breakdowns beyond the three leads have not been officially released, making it difficult to confirm additional Irish cast members at this stage.

Who are the main stars in 28 Years Later cast?

The three confirmed lead stars represent a significant casting coup for the franchise. Each brings a distinct profile that reflects both critical acclaim and mainstream recognition—qualities Sony likely sought for a film launching a trilogy.

Jodie Comer as Isla

Jodie Comer, known for her Emmy-winning role in Killing Eve and her appearance in Free Guy, takes on the role of Isla. Comer has built a reputation for nuanced performances in high-pressure roles, making her casting a particularly strong fit for whatever character demands the film places on its lead female protagonist.

Aaron Taylor-Johnson as Jamie

Aaron Taylor-Johnson plays Jamie in 28 Years Later. Taylor-Johnson has demonstrated range across genres—from his role as Quicksilver in the Marvel Cinematic Universe to dramatic performances in films like Anna Karenina. He has also been rumored as a potential James Bond, adding to his current visibility in the industry.

Ralph Fiennes as Dr. Kelson

Ralph Fiennes, the classically trained British actor best known for playing Voldemort in the Harry Potter franchise and leading roles in The Grand Budapest Hotel and Schindler’s List, appears as Dr. Kelson. His involvement suggests the film will include plot elements requiring a character with scientific or authoritative credentials.

What other cast members feature in 28 Years Later?

Beyond the headline stars, IMDb and industry reporting suggest additional cast members who fill out the ensemble. The full picture remains incomplete, but several names appear with growing consistency.

Kid actors and supporting roles

Rocco Haynes has been listed in connection with the role of Young Jimmy—a detail that suggests the film will include flashback or younger-character sequences, potentially tying the new story back to the original 28 Days Later timeline. Alfie Williams and Jack O’Connell also appear in various listings associated with the production.

Spike and Bone Temple references

Fan discussion has speculated about references to “Spike” and “Bone Temple” in relation to 28 Years Later. These terms appear in fan-created content and rumor discussions rather than official sources. Without confirmed cast or plot details, treating these as speculation rather than fact is advisable at this stage.

Timeline of 28 Years Later production

The franchise’s return has followed a measured pace, with significant gaps between entries that allow each film to stand as its own event.

• 2002: 28 Days Later released, establishing Danny Boyle and Alex Garland’s vision for the infected genre (Motion Picture Association)
• 2007: 28 Weeks Later released without Cillian Murphy, introducing a new storyline and characters
• January 2024: 28 Years Later greenlit; Cillian Murphy confirmed as executive producer (GAMINGbible)
• January 2024: Jodie Comer, Aaron Taylor-Johnson, and Ralph Fiennes cast as leads; Deadline first reported the news (Motion Picture Association)
• 2025: Planned theatrical release window

The 22-year span between the original film and its sequel represents a remarkable interval in franchise filmmaking. Boyle and Garland’s reunion after that duration represents both a challenge—audiences have changed, the genre has evolved—and an opportunity to revisit a property with enduring cultural resonance.

Clarity: What’s confirmed versus rumored

What they’re saying

And Murphy might even act in the film, although those details are being kept in a top-secret biohazard facility.

— Motion Picture Association reporting, April 2024

Ralph Fiennes, Jodie Comer, and Aaron Taylor-Johnson are confirmed for the first film of a planned three-movie run.

— GAMINGbible, April 2024

The ensemble boasts Jodie Comer as Isla and Aaron Taylor-Johnson as Jamie, with full cast including Murphy shedding light on Ralph Fiennes and other key players.

Frequently asked questions