If you’ve spent any time on Netflix lately, specifically glued to the high-stakes zombie mayhem of All of Us Are Dead, you definitely know Lee Cheong-san. Or rather, you know the actor behind him. Yoon Chan-young has been everywhere. But since he’s spent a lot of his screen time running for his life or covered in grime, fans have been left with one nagging question: just how tall is he?
It’s a classic K-drama fan obsession. We see him standing next to the towering Lomon (Park Solomon) and he looks... well, not short, but definitely like he’s looking up. Then we see him in solo shots or in his newer work like High School Return of a Gangster, and he looks like a total model. Honestly, the camera can be pretty deceptive when it comes to height in the industry.
What is Yoon Chan-young’s actual height?
Let’s get the numbers out of the way first. According to his official profile and various industry databases as of 2026, Yoon Chan-young stands at 178 cm (5 ft 10 in).
Now, for anyone who follows Korean entertainment closely, you know that profile heights are sometimes a bit "aspirational." Actors might add an inch or two for luck. But with Chan-young, 178 cm feels pretty spot on. He’s got that lean, athletic build that makes him look taller than he is when he’s on his own, but he doesn't hit that "giant" status that some of his peers do.
He isn't a small guy. Not at all.
He’s basically the definition of "average-tall." In South Korea, where the average male height is roughly 173–175 cm, standing at 178 cm puts him comfortably above the curve. It’s that sweet spot where he can play a relatable high school student but still has the physical presence to lead a gritty noir drama.
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The "All of Us Are Dead" height gap
The reason everyone got so curious about Yoon Chan-young height in the first place was likely the visual contrast in his breakout Netflix hit.
Think about the main trio. You had Chan-young, Park Ji-hu (who is around 160 cm), and Lomon. Lomon is a legitimate beanpole, standing at about 183 cm (6 ft). When the three of them were in a frame together, Chan-young occupied the middle ground.
- Park Solomon (Lomon): ~183 cm
- Yoon Chan-young: 178 cm
- Park Ji-hu: ~160 cm
It’s sort of a trick of the light. When he was scenes with Ji-hu, he looked tall and protective. Put him next to Lomon, and suddenly he’s the "smaller" one. It worked perfectly for the character of Cheong-san—someone who wasn't necessarily the biggest guy in the room but had the biggest heart and the most grit.
Growth spurts and the child actor legacy
You have to remember, Chan-young has been in front of the camera since he was a literal kid. He started out in 2013 in When a Man Falls in Love. We've actually watched him grow up.
Most people first noticed him as the young version of lead characters in dramas like Six Flying Dragons or Still 17. Back then, he was just a small, talented kid. Seeing him suddenly show up as a 178 cm young man was a bit of a shock for long-time K-drama viewers. It’s that "wow, he grew up so fast" moment.
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Honestly, he might still be filling out. While he likely reached his peak height around 20 or 21, his frame has definitely broadened. By 2025 and 2026, in projects like Hyper Knife, you can see that he’s transitioned from "lean teenager" to a more mature, solid build.
Does height even matter for his roles?
In the world of Hallyu, being over 180 cm is often seen as the "gold standard" for male leads. You see guys like Nam Joo-hyuk or Rowoon who are pushing 190 cm and it’s almost intimidating.
But Chan-young belongs to a different school of actors—the ones where the talent is so loud you don't care about the tape measure. Think about actors like Im Si-wan or D.O. (Do Kyung-soo). They aren't the tallest guys on set, but they command the screen.
Chan-young has that same energy. Whether he’s playing a student possessed by a gangster or a kid trying to survive a zombie apocalypse, his physical acting is top-tier. He uses his 178 cm frame well; he's fast, he's agile, and he does a lot of his own stunts. That agility was actually a huge part of why his performance in All of Us Are Dead was so convincing. A bigger, bulkier actor might not have looked as natural parkouring over library bookshelves.
Breaking down the measurements: CM to Feet
For those of you who struggle with the metric system, here’s a quick breakdown of where he sits:
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- 178 cm is exactly 5 feet 10.1 inches.
- In the US, he’d be slightly taller than the average male (who is about 5'9").
- In the K-drama world, he’s considered "standard lead height."
Some fan sites occasionally claim he’s 175 cm, while others push it to 180 cm. The 178 cm figure is the one most consistently cited by Snowball Entertainment (his agency) and official production notes.
Why we care about Yoon Chan-young height anyway
It sounds silly, right? Obsessing over a few centimeters. But in the context of Korean celebrity culture, these details help fans "place" an actor. It’s about chemistry. When casting directors look for a female lead to pair with him, they look at the height difference.
Fans love a good "height difference" trope. At 178 cm, Chan-young is tall enough to create that classic visual gap with most actresses, who typically range between 160 cm and 167 cm. It’s basically the perfect height for a romantic lead without making the cinematography a nightmare for the crew.
What’s next for the star?
Height aside, Chan-young is busy cementing himself as one of the best actors of his generation. He’s moved past the "child actor" label completely. His choices lately show he’s looking for range—action, noir, and intense character studies.
If you're looking to keep up with him, your best bet is following his official social media or keeping an eye on his agency's updates. He doesn't post "body check" photos or gym selfies as much as some other actors, but his style definitely highlights his lean, tall proportions. He’s a fan of oversized fits, which is a very "tall guy" fashion choice in Seoul right now.
Actionable Insights for Fans:
- Verify the source: If you see a site claiming he is 6 feet tall, take it with a grain of salt. 178 cm is the verified industry standard for him.
- Watch the footwear: In red carpet photos, male actors often wear "elevator shoes" or boots with a significant heel. If he looks as tall as Lomon in a photo, check the shoes!
- Focus on the filmography: If you want to see his physical growth, do a marathon from Mama (2014) to High School Return of a Gangster (2024). It's the best way to see how much he's actually changed.
At the end of the day, 178 cm or 180 cm, the guy has "it." He’s got the screen presence that makes you forget about the numbers. He’s a powerhouse, and he’s only getting started.