Okay, let’s settle this once and for all. You know that scene in 28 Days Later where our scruffy hero, Jim, wakes up in a hospital bed, alone except for a pile of creepy mannequins and a world gone rabid? The first thing he asks, dazed and confused, is “How long have I been asleep?” And the answer—28 days—makes for a killer title. But we’re a nosy bunch, aren’t we? We want to know the real number: How old is Jim?

Well, grab your bottle of emergency whiskey, because here’s the lowdown. Screenwriter Alex Garland has cheekily dodged giving Jim a firm birth year, but we can piece it together like a post-apocalyptic jigsaw. Jim is played by a very fresh-faced Cillian Murphy, who was 27 years old when the film was released in 2002. So, assuming director Danny Boyle didn’t cast a teenager with a serious case of “I need a shave,” our man Jim is probably somewhere between 25 and 28. Think about it: he’s a bike courier in London, not a fresh grad, but not yet a settled adult. He’s got that “just figuring it out” energy—which, let’s be honest, is perfect for a zombie apocalypse. Who needs a 401(k) when you’ve got rage-infected monsters?

So, there you have it. Jim is roughly the same age as your cool older cousin who still lives in a studio and eats cereal for dinner. But here’s the uplifting twist: age is just a number when you’re navigating a world gone sideways. 28 Days Later isn’t about how old Jim is—it’s about how old he feels. He starts as a scared kid in a hospital gown and ends as a gritty survivor. And that, dear reader, is the lesson. Whether you’re 25 or 55, every day is a chance to hit reset. So go ahead, embrace your inner Jim. You’re never too old—or too young—to find your second start.

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