Alright, gather 'round, 'cause we're about to dive into a fun little journey through the Seven Kingdoms - no, not that kind of journey, we're talking about the age of our favorite pint-sized king, Jack Gleeson, when he was ruling over Westeros in Game of Thrones.

Now, you might be thinking, "Who cares how old Jack Gleeson was when he was playing Joffrey? I just want to know if he's still alive after all those arrows and crossbow bolts!" Well, spoiler alert: he's very much alive and kicking, but let's rewind a bit and talk about his time on the Iron Throne.

From Schoolboy to King

Picture this: it's 2010, and Jack Gleeson is just a regular 17-year-old kid, probably worrying about exams, trying to figure out what to do with his life, and maybe even struggling with acne (we've all been there, no judgment). Little did he know, his life was about to get a whole lot more dramatic than any teenage drama.

He lands the role of the infamous King Joffrey, and just like that, he's transformed from a schoolboy into a power-hungry, sadistic ruler. Talk about a crash course in character development! Imagine explaining that one to your parents: "Hey, Mom, Dad, I got a part in this new show, and I'll be playing a psychopathic king. No big deal."

Growing Up on Screen

So, how old was Jack Gleeson when he first started playing Joffrey? Well, he was just 17 when the show began, and he stayed on the Iron Throne until he was 21. That's right, folks, he grew up on screen. It's like watching a real-life Coming of Age story, except instead of learning to drive or getting a first job, he was learning to be a ruthless ruler.

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Think about it: when you first started watching the show, Joffrey was this annoying, bratty kid. But as the seasons went on, and Jack Gleeson grew older, Joffrey grew more terrifying. It's like watching a puppy grow into a Rottweiler - sure, they're both dogs, but one is a whole lot scarier than the other.

Life After the Throne

Now, you might be wondering, "What happened to Jack Gleeson after he hung up his royal robes?" Well, he went back to being a regular 21-year-old, trying to navigate the real world. But this time, he had a few years of experience playing a king under his belt.

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He's since taken a step back from acting, focusing on his studies and other interests. He's even gone on the record saying he doesn't want to act anymore, which is a bit like Ned Stark saying he doesn't want to be Hand of the King - a little too late for that, buddy!

But who knows? Maybe one day we'll see Jack Gleeson grace our screens again. Until then, we can all reminisce about the time he was our favorite (least favorite?) pint-sized king, and wonder what it was like growing up in the crazy world of Game of Thrones.