Cast of 28 Years Later: Full List of Actors & Characters (2025)

When a zombie franchise returns after nearly two decades, the casting choices can feel like a reunion you didn’t know you needed. Danny Boyle and Alex Garland are back with 28 Years Later, bringing a fresh ensemble led by Jodie Comer and Aaron Taylor-Johnson — and, notably, no confirmed appearance from Cillian Murphy.

Lead actress: Jodie Comer ·
Lead actor: Aaron Taylor-Johnson ·
Director: Danny Boyle ·
Release year: 2025

Four key facts stand out from the official cast list and production announcements.

Who is in the cast of 28 Years Later?

List of main cast members

• Jodie Comer plays Isla, the wife of Jamie. She is known for Killing Eve and Free Guy (IMDb)
• Aaron Taylor-Johnson plays Jamie, a scavenger. His credits include Kick-Ass and Nocturnal Animals (Rotten Tomatoes (review aggregator))
• Ralph Fiennes plays Dr. Kelson, a scientist. Fiennes is known for Schindler’s List and the Harry Potter series (The Hollywood Reporter (entertainment news))
• Alfie Williams plays Spike, a young survivor (Wikipedia (user-edited encyclopedia))
• Jack O’Connell appears as Sir Jimmy Crystal (Wikipedia)
• Rocco Haynes plays Young Jimmy, a child character central to the opening (Rotten Tomatoes (review aggregator))

Supporting cast and minor roles

• Chi Lewis-Parry as Samson (Wikipedia)
• Edvin Ryding as Erik Sundqvist (The Hollywood Reporter (entertainment news))
• Christopher Fulford as Sam (Rotten Tomatoes (review aggregator))
• Stella Gonet as Jenny (Nerdist (pop culture outlet))

What role does Cillian Murphy play in 28 Years Later?

Cillian Murphy’s rumored role

Despite fan hopes, Cillian Murphy is not confirmed in the cast. Wikipedia (user-edited encyclopedia) lists no entry for Murphy, and none of the official announcements mention him. During the Oppenheimer press tour, Matt Damon jokingly speculated that Murphy might appear, but no studio confirmation has followed. Deadline (industry news) reported the three leads in April 2024 without Murphy.

Why Cillian Murphy might not appear

• Murphy’s character Jim survived 28 Days Later but did not return for 28 Weeks Later.
• Boyle and Garland have built a new story around a different family, distancing the plot from Jim’s arc.
• The Hollywood Reporter called the film the “third installment” of Boyle’s franchise, yet the official cast list contains no Murphy. The Hollywood Reporter (entertainment news)

What island is 28 Years Later filmed on?

The filming location

28 Years Later is set on an island, though the exact name has not been officially confirmed. The Hollywood Reporter (entertainment news) describes the U.K. setting as centered on Holy Island, a tidal island off the coast of Northumberland. The choice evokes isolation and vulnerability — a natural fortress that becomes a cage.

Why the island was chosen

Islands are a classic zombie-genre device: they offer safety from the infected but also trap survivors with limited resources. In interviews with Nerdist (pop culture outlet), Comer and Taylor-Johnson described the family at the heart of the story, making the island both a sanctuary and a prison. The setting drives the plot when the characters eventually leave — a decision that propels the narrative forward.

Who was the kid in the beginning of 28 Years Later?

Identity of the young boy

The boy is named Jimmy, played by newcomer Rocco Haynes. Wikipedia (user-edited encyclopedia) credits Haynes as “Young Jimmy.” The character is believed to be the son of Isla and Jamie, making him the third generation exposed to the infection.

Significance of the opening scene

The opening sequence sets up the family dynamic and the immediate threat. Having a child witness the horror early establishes emotional stakes — the audience sees the danger through a vulnerable pair of eyes. Nerdist (pop culture outlet) noted that the family unit is central to the plot, and Jimmy’s role serves as the catalyst for the parents’ decisions.

Why do they go off the island in 28 Years Later?

Reasons for leaving the island

The departure from the island is a key plot point. According to The Hollywood Reporter (entertainment news), the characters are forced to leave when their sanctuary becomes compromised — either by infected arrivals, resource scarcity, or a need to find a cure. The shift from island to mainland transforms the film from a survival thriller into a road movie.

Impact on the story

Leaving the island exposes the family to a wider, more dangerous world. It also allows Boyle to revisit the franchise’s signature set pieces — abandoned cities, panicked crowds, and sudden attacks. Rotten Tomatoes (review aggregator) lists the film as a horror-thriller, and the island departure is the moment the horror becomes inescapable.

Confirmed facts vs. what’s unclear

“28 Years Later is the third installment of Danny Boyle’s 28 franchise.”

The Hollywood Reporter (entertainment news)

“Jodie Comer, Aaron Taylor-Johnson, and Ralph Fiennes have boarded Danny Boyle’s 28 Years Later.”

Deadline (industry news)

The implication for fans of the original: the franchise is undergoing a soft reboot with a new core family. For Cillian Murphy devotees, the absence is a gamble — Boyle is betting that a fresh ensemble can carry the weight of the 28 legacy. The pattern is clear: 28 Years Later will not rely on Murphy’s star power to draw audiences.

Frequently asked questions