Last Christmas, I had a full-blown argument with my cousin about whether Kevin McCallister could legally rent a car in Home Alone 2. She swore he was twelve, I swore he was ten, and neither of us bothered to check the actual timeline. We were both wrong, by the way—he’s ten—but the real mind-bender hit me later: what about Buzz?

We all remember Buzz. The older brother with the pet tarantula, the terrible skin, and the ego the size of a airport terminal. But have you ever stopped to ask, “How old is this glorified bully, actually?” I didn’t think so. You were too busy laughing at him getting zapped by flying paint cans.

Let’s set the stage. The first movie takes place during Christmas of 1990, and the sequel happens exactly one year later—Christmas 1991. That’s not a guess; it’s the entire premise. Kevin gets lost again, this time in New York, because his family is still a chaotic mess. So whatever age Buzz was in movie one, you just add one year for movie two.

Now, here’s where the detective work gets fun. In the first movie, Buzz is in high school. He’s got a locker, he’s obsessed with his girlfriend (the infamous “girlfriend with a fake ID”), and he talks about his “senior trip” to Florida. That last bit is key—senior means he’s a senior, which typically makes him 17 or 18 years old.

But wait, let’s dig deeper, because Hollywood never does simple math. The actor who played Buzz, Devin Ratray, was born in 1977. The first movie filmed in early 1990, so he was 12 or 13 during production. Yet his character clearly acts and speaks like a 17-year-old. That’s a five-year gap, folks. It’s like they cast a baby-faced 12-year-old to play a high school senior.

So, if Buzz is 17 (or 18) in Home Alone, then in Home Alone 2, he’s 18 or 19. That makes him a legal adult. You know what that means? He could vote, he could sign a lease, and he could absolutely be charged as an adult for stealing his brother’s pizza money. But does he act like an adult? Absolutely not. He’s still the same guy who thinks “suck brick” is a devastating insult.

Let me throw a wrench in my own theory. In the second movie, Buzz is seen packing for the family trip to Miami, and he’s ranting about Kevin ruining his “big break” with his girlfriend. He says, “I’m gonna be a senior again?”—wait, no, I’m paraphrasing. Actually, he never states his age explicitly, so we rely on context clues. The guy is clearly post-high-school or at least a super-senior, because he’s driving a car in one scene. Wait, does he drive? I think he just rides in the van. Hmm, let me rewind my memory.

Okay, I just rewatched the scene in my head: Buzz is in the back of the family van, mocking Kevin. He’s not driving. But he does have a fake ID in the first movie, which implies he’s at least 16. Add a year, and he’s 17 or 18. The fake ID was probably for buying beer, and if you’re 17, you’re still a junior or senior. So my final answer: Buzz is 18 in Home Alone 2, if we’re being generous with the timeline. If we’re being strict with the actor’s actual age, Devin Ratray was 14 during the sequel’s filming, which makes the character’s on-screen age pure fiction.

Buzz Home Alone 2Buzz Home Alone 2

Here’s the funny thing about age in the McCallister family: it’s completely arbitrary. Kevin is ten, his brother Jeff is around 13, and Buzz is supposedly 18, but they all share the same emotional maturity—which is to say, zero. Buzz acts like a 40-year-old dad one minute (“I’m in charge!”) and a toddler the next (“He’s hurting my feelings!”). So does his exact age even matter? Honestly, no, but it’s fun to obsess over.

If you’re still with me, let’s get pedantic. The Home Alone 2 novelization (yes, that exists) lists Buzz as 18. The original script also mentions his “senior year” again, which technically can’t happen if he was a senior the year before. Unless he failed a grade, which—given his discipline issues—is totally plausible. I like to imagine Buzz repeated senior year just to terrorize Kevin on another vacation.

Why do we care? Because Buzz is the ultimate older sibling archetype. He’s the guy who thinks he’s smarter than everyone but gets outsmarted by a kid with a bag of feathers. His age matters because it makes his failures funnier. An 8-year-old getting beaten by a toddler is sad; an 18-year-old getting beaten by a 10-year-old is comedy gold. That’s the sweet spot.

So, next time you watch the scene where Buzz eats a cheese pizza that’s been laced with tarantula venom, just remember: that’s an adult man’s face. A legal adult, with the right to vote, driving privileges, and the emotional intelligence of a damp sock. And that’s exactly why we love him.

Bottom line: Buzz is roughly 18 in Home Alone 2, but let’s be real—he’s been 15 forever in our hearts. The math is fuzzy, the acting is broad, and the timeline is a suggestion, not a rule. The only thing that’s certain is that he’ll always be the guy who shouts “Kevin!” like it’s a curse word.

Now, if you’ll excuse me, I’m going to go argue with my cousin again. This time about the exact weight of the paint cans. Spoiler: I’ll be wrong.