In the upcoming Iron Lung film, Jacksepticeye plays a minor character named Jack , a mechanic working under Captain Ava for the Consolidation of Iron.

Quick Scoop

  • Jacksepticeye’s character is called Jack in the Iron Lung movie.
  • He appears as one of the mechanics in the control room during the SM-13 mission.
  • Within the story, Jack works under Captain Ava and steps up after another mechanic, David, is incapacitated.
  • The role is essentially a cameo , playing on his own name and status as a well‑known YouTuber and friend of director Markiplier.

A bit of extra context

In the film’s lore, Jack is present when the control room is irradiated during the mission involving the SM‑13 submarine, nicknamed the “Iron Lung.” After David is badly hit by radiation and hospitalized, Jack takes over his duties, showing a more cold, questioning attitude toward Ava’s decisions and promises.

Fans on forums have noted that he doesn’t have a big speaking role and mainly appears as the mechanic Jack who gets blasted with radiation in that sequence, reinforcing the idea that this is more of a fun cameo than a central role.

TL;DR: Jacksepticeye plays Jack , a mechanic working under Captain Ava in the Iron Lung film, appearing as a small but notable cameo during the control-room radiation incident.

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