'Iron Lung' Movie Cast Revealed: Get to Know the Stars in Markiplier's 2026 Horror Flick

Famous YouTube creator Markiplier financed, co-wrote, directed, and starred in his first feature film, "Iron Lung."

The horror movie is inspired by a cult-favorite video game of the same name. Markiplier took on multiple roles in the project, including director, co-writer, producer, and lead actor. He self-financed the film, emphasizing his creative control and dedication to the story.

What Is "Iron Lung" About?

The movie's storyline, described by Markiplier, revolves around a space station and a barren moon where an expedition is launched to discover crucial resources. The pressure-filled mission involves a submarine with a convict inside, aiming for freedom through success.

Meet the "Iron Lung" Cast

Markiplier stars in the film alongside actors such as Caroline Rose Kaplan, Troy Baker, Elsie Lovelock, Kazuki Jalal, Elle LaMont, Isaac McKee, and Seán McLoughlin. Elsie is a singer and actress from England, while Caroline has appeared in various TV shows.

The movie was released in theaters on January 30, 2026, marking Markiplier's official debut as a director. It premiered in 50 to 100 independent theaters across the U.S., following a strategy to prioritize an indie theatrical release over a wide studio distribution. This approach allowed Markiplier to maintain creative control and engage directly with fans in select markets.

Despite warnings against taking on multiple roles, Markiplier expressed pride in the collaborative effort that went into making the film. He looks forward to sharing the hard work and dedication put into the project with the audience.