The 28 Years Later: The Bone Temple cast features Ralph Fiennes, Jack O’Connell and Alfie Williams. This info article contains minor spoilers and character details for Nia DaCosta’s 2026 movie on Amazon and Netflix. Check out more cast guides in Vague Visages’ Know the Cast category.

28 Years Later: The Bone Temple centers on various survivors of a “Rage Virus.” As a doctor searches for a cure, a cult leader seeks more power. The narrative follows the main players as they prepare for the future while influencing a group of young men and women. Here’s every actor and character in 28 Years Later: The Bone Temple, the fourth installment of the movie franchise and a direct sequel to the 2025 film 28 Years Later.

Read More at VV — Know the Cast: ’28 Days Later’

28 Years Later: The Bone Temple Cast: Ralph Fiennes as Dr. Kelson

Character Profile: A virus survivor and doctor. He spreads iodine on his body to protect himself while researching possible cures for the Rage Virus. Dr. Kelson poses as the Devil to please a menacing cult leader.

Fiennes’ Resume: Amon Goeth in Schindler’s List (1993), Justin Quayle in The Constant Gardener (2005), Lord Voldemort in the Harry Potter Movie Franchise (2005-11), Gareth Mallory in the James Bond Movie Franchise (2012-), Lawrence in Conclave (2024)

Read More at VV — Know the Cast: ‘I Know What You Did Last Summer’

28 Years Later: The Bone Temple Cast: Jack O’Connell as Sir Jimmy Crystal

Character Profile: A cult leader. He orchestrates human sacrifices to please the Devil aka “Old Nick.” Sir Jimmy manipulates Dr. Kelson in order to maintain control of his own followers.

O’Connell’s Resume: Eric Love in Starred Up (2013), Louis Zamperini in Unbroken (2014), Gary Hook in ’71 (2014), Roy Goode in Godless (2017), Remmick in Sinners (2025)

Read More at VV — Know the Cast: ‘Until Dawn’

28 Years Later: The Bone Temple Cast: Alfie Williams as Spike

Character Profile: A virus survivor. He breaks free from Sir Jimmy’s crew and receives help from a female member. Spike reunites with Dr. Kelson after previously meeting him in 28 Years Later.

Williams’ Resume: Ghost Theo in His Dark Materials (2022), Young John Henry Sayers in A New Breed of Criminal (2023), Spike in 28 Years Later (2025)

Read More at VV — Know the Cast: ‘Fear Street: Prom Queen’

28 Years Later: The Bone Temple Cast: Erin Kellyman as Jimmy Ink

Character Profile: Sir Jimmy’s follower. She escapes from the pack with Spike. Jimmy Ink strategizes against Sir Jimmy as he becomes more manipulative and violent.

Kellyman’s Resume: Cathy in Raised by Wolves (2015-16), Enfys Nest in Solo: A Star Wars Story (2018), Winifred in The Green Knight (2021), Jade Claymore in Willow (2022-23), Jimmy Ink in 28 Years Later (2025)

Read More at VV — Know the Cast: ‘Frankenstein’

28 Years Later: The Bone Temple Cast: Chi Lewis-Parry as Samson

Character Profile: An infected human. He receives care from Dr. Kelson. Samson becomes addicted to morphine and manages to remember his past life.

Lewis-Parry’s Resume: Blue Raven in Pennyworth (2022), Matthew in Ted Lasso (2023), Phoebus in Gladiator II (2024), Negative Dude in The Running Man (2025), Dom in A Woman Scorned (2025)

Read More at VV — Know the Cast: ‘Dangerous Animals’

28 Years Later: The Bone Temple Cast: Emma Laird as Jimmima

Character Profile: One of Sir Jimmy’s followers. She participates in human sacrifices. Jimmima clashes with Jimmy Ink.

Laird’s Resume: Iris in Mayor of Kingstown (2021-24), Annabelle in The Crowded Room (2023), Desdemona Holland in A Haunting in Venice (2023), Audrey in The Brutalist (2024), Shannon in Mint (2026)

Read More at VV — Know the Cast: ‘Together’

The 28 Years Later: The Bone Temple cast also includes:

• Sam Locke as Jimmy Fox
• Robert Rhodes as Jimmy Jimmy
• Ghazi Al Ruffai as Jimmy Snake
• Maura Bird as Jimmy Jones
• Connor Newall as Jimmy Shite
• Louis Ashbourne Serkis as Tom
• Mirren Mack as Cathy
• David Sterne as George
• Cillian Murphy as Jim (Uncredited)

Q.V. Hough (@QVHough) is Vague Visages’ founding editor.