Quick answer

In the 2026 BBC/Netflix TV adaptation of Lord of the Flies , Jack is played by 14‑year‑old British actor Lox Pratt.

If you’re thinking of older film versions, the role has been played by different actors:

  • 1963 film : Tom Chapin as Jack
  • 1990 film : Chris Furrh as Jack

About Lox Pratt’s Jack (2026 series)

Lox Pratt’s version of Jack has been widely discussed online because it’s a high‑profile, modern reimagining of William Golding’s novel, written by Jack Thorne and directed by Marc Munden.

  • Character take : In interviews, Pratt describes Jack as “narcissistic, arrogant, and condescending,” but also “a scared little guy” underneath.
  • Contrast with the actor : He’s emphasized that he’s very different from Jack in real life, saying he felt a strong connection to the role precisely because the character is “so unlike me.”
  • Career context : This role landed just as Pratt was also cast as Draco Malfoy in HBO’s new Harry Potter series, which sparked a lot of forum chatter about him playing two major “villain” roles back‑to‑back.

Why there are multiple answers online

“Who plays Jack in Lord of the Flies?” often pulls up different results depending on which version people mean:

  • Original novel (1954) : Jack is a fictional character; no single “actor.”
  • 1963 black‑and‑white film : Tom Chapin.
  • 1990 Hollywood film : Chris Furrh.
  • 2026 TV series (BBC/Netflix) : Lox Pratt.

Most recent news, reviews, and forum discussions in 2026 are about Lox Pratt , since that’s the new, widely streamed version.

Mini cast snapshot (2026 TV series)

Per recent coverage, the core boys include:

  • Lox Pratt – Jack
  • Other key roles (Ralph, Piggy, Simon, etc.) are played by a new ensemble of young actors, but Jack is the breakout “antagonist” performance driving a lot of the conversation.

TL;DR: For the latest 2026 Lord of the Flies series, Jack = Lox Pratt. For the ’90 movie, Jack = Chris Furrh ; for the ’63 movie, Jack = Tom Chapin.

Information gathered from public forums or data available on the internet and portrayed here.