Aaron Taylor-Johnson leads '28 Years Later.' Here's where you might recognize the rest of the cast from.

Aaron Taylor-Johnson plays Jamie in "28 Years Later," and he takes his son onto the mainland, where they come face-to-face with the infected.

The actor previously starred in the "Kick-Ass" movies, and played superhero Quicksilver in "Avengers: Age of Ultron."

He also appeared in the 2014 "Godzilla" reboot and had a supporting role in Christopher Nolan's "Tenet."

Last year he led Sony's "Kraven the Hunter" movie as the titular Marvel villain, before getting his first brush with the horror genre in "Nosferatu."

Jodie Comer plays Jamie's wife Isla (and Spike's mother) in "28 Years Later."

Comer started her career by starring in buzzy British dramas like "My Mad Fat Diary," "Doctor Foster," and "Killing Eve."

She made the jump to Hollywood in the last five years, and worked with Ryan Reynolds on "Free Guy," and starred opposite Ben Affleck and Adam Driver in Ridley Scott's "The Last Duel."

In 2023, she played Kathy Bauer in "The Bikeriders" with Austin Butler and Tom Hardy.

Ralph Fiennes plays the mysterious Dr Ian Kelson in "28 Years later." The actor is one of the most famous British stars of the past 30 years, following Oscar-nominated performances in films such as "Schindler's List," "The English Patient," and 2024's "Conclave."

He may be best known for playing Voldemort in the "Harry Potter" franchise, and the new M in Daniel Craig's "James Bond" movies.

Jack O'Connell plays Sir Jimmy Crystal in "28 Years Later," but the details of his role are being kept secret and out of the film's marketing material.

He rose to fame thanks to his role as Cook in the teen drama, "Skins," before starring in critically acclaimed British movies and shows including "This Is England," "Eden Lake," and "'71."

He later appeared in Netflix's "Lady Chatterley's Lover" opposite Emma Corrin, and played Amy Winehouse's husband, Blake Felder-Civil, in "Back to Black."

In 2024, O'Connell portrayed the vampire villain, Remmick, in Ryan Coogler's "Sinners."

Erin Kellyman plays Jimmy Ink in "28 Years Later," but her role has been kept out of the marketing for the film. She also got her start in British TV thanks to shows like "Raised By Wolves" and the "Les Misérables" miniseries.

She started to get more attention after her brief role as rebel pirate Enfys Nest in "Solo: A Star Wars Story," which led to her playing villain Karli Morgenthau in the Marvel series, "The Falcon and The Winter Soldier."

She continued her TV streak in 2022 by starring in Netflix's "Top Boy" and Disney's "Willow."