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10 Things About "Teach You a Lesson" Actor Kim Mu Yeol

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<p>The class is in session! A new K-drama has topped the list of shows on <strong>Netflix</strong> Philippines: <strong><em>Teach You a Lesson</em></strong>. This one is not your ordinary campus-based series, though, as it combines a familiar plot, centered on bullying, with action-packed scenes masterfully executed by Korean actor <strong>Kim Mu-yeol</strong>. </p><p>Based on the webtoon <strong><em>Get Schooled</em></strong> by Chae Yong-taek and Han Ga-ram and released on June 5, 2026, <em>Teach You a Lesson</em> quickly rose to the top as a buzzworthy series, and there&#x27;s no doubt Kim Mu-yeol is one of the reasons this 10-episode K-drama got people hooked from start to finish. </p><div><br/></div><div><span class="fr-img-caption fr-fic fr-dib" style="width:960px;display:block" width="960"><span class="fr-img-wrap"><img src="https://od2-image-api.abs-cbn.com/prod/editorImage/1781179170017Kim Mu Yeol.jpg" style="width:960px" class="fr-fic fr-dib" width="960"/><span class="fr-inner">Photo from @praintpc_official</span></span></span></div><p><em>Teach You a Lesson </em>is about a group the government established to address campus violence and issues involving the faculty. Dubbed the Educational Rights Protection Bureau (ERPB) under the Teacher Rights Protection Act, this team moves across educational institutions, well, to teach the students, the teachers, and even the parents lessons to protect the youth and ensure a good future for them. And to do that, they are granted the legal authority to discipline them through whatever they deem necessary in a situation.</p><p>At the core of this operation is Kim Mu-yeol&#x27;s character, <strong></strong>Na Hwa-jin, <strong></strong>a former Special Forces captain turned inspector for the ERPB. Working alongside him are<strong> Lee Sang-min</strong>&#x27;s Choi Gang-seok (Minister of Education and ERPB&#x27;s founder), <strong>Jin Ki-joo</strong>&#x27;s Im Han-rim (a former Special Forces sergeant turned inspector for the ERPB), and <strong>Pyo Ji-hoon</strong> as Bong Geun-dae (a 5th-grade civil servant who graduated from KAIST and is hired by the ERPB). </p><div><br/></div><div><span class="fr-img-caption fr-fic fr-dib" style="width:960px;display:block" width="960"><span class="fr-img-wrap"><img src="https://od2-image-api.abs-cbn.com/prod/editorImage/1781181331380700277568_18396955774082607_8763870073064097811_n.jpg" style="width:960px" class="fr-fic fr-dib" width="960"/><span class="fr-inner">Photos from Netflix</span></span></span></div><div><em></em></div><div><br/></div><p>Gaining further popularity through <em>Teach You a Lesson</em>, Kim Mu-yeol proves his versatility with a role that balances humor and heart. <em></em><strong></strong>Want to learn more about Kim Mu-yeol? Scroll through these fun facts. </p><div style="text-align:left"><br/></div><div style="text-align:left"><strong>He had humble beginnings.</strong></div><p style="text-align:left">Kim Mu-yeol did not come from a wealthy family. The 44-year-old actor, who was born in Seoul, has had some life detours to make ends meet as his family&#x27;s breadwinner. He had to take on different part-time jobs and had to put his dream of becoming an actor on hold. </p><div style="text-align:left"><br/></div><div style="text-align:left"><strong>He attended the famous Sungkyunkwan University.</strong></div><p>But he eventually found a way to pursue his dream in the field of performing arts. He attended Anyang Arts High School and was later admitted to Sungkyunkwan University&#x27;s Acting Department. Notable alumni from this university include Korean actors Song Joong-ki, Cha Eun-woo, Kim Hye-soo, Krystal Jung, Moon Ga-young, and many others. </p><div><strong></strong></div><div><br/></div><div><iframe class="instagram-media instagram-media-rendered" id="instagram-embed-0" src="https://www.instagram.com/p/Cxho0oSpc-u/embed/?cr=1&amp;v=14&amp;wp=864&amp;rd=https%3A%2F%2Fod2-workbench-web.abs-cbn.com&amp;rp=%2F#%7B%22ci%22%3A0%2C%22os%22%3A2401184.1999999997%7D" allowtransparency="true" allowfullscreen="" frameBorder="0" height="881" data-instgrm-payload-id="instagram-media-payload-0" scrolling="no" style="background:white;max-width:540px;width:calc(100% - 2px);border-radius:3px;border:1px solid rgb(219, 219, 219);box-shadow:none;display:block;margin:0px 0px 12px;min-width:326px;padding:0px"></iframe></div><script async="" src="//www.instagram.com/embed.js"></script><div><br/></div><div><strong>His acting career began in musicals.</strong></div><p>The 2002 musical &quot;Jjangtta&quot; marked his professional debut as an actor. Kim Mu-yeol spent years developing his acting skills, jumping from one musical or play to another. From an ensemble cast member to a lead star, he has collected a string of roles in the theater world. His theater portfolio includes iconic titles like &quot;<strong></strong><strong>Grease</strong><strong></strong>,&quot; &quot;<strong>Singin&#x27; in the Rain</strong>,&quot; &quot;<strong>Thrill Me</strong>,&quot; &quot;<strong>Spring Awakening</strong>,&quot; &quot;<strong>Jack the Ripper</strong>,&quot; and &quot;<strong>Kinky Boots</strong>.&quot; <em></em> In 2009, he won Best Actor at the 15th Korea Musical Awards for his role in &quot;Spring Awakening.&quot;<strong></strong></p><div><br/></div><div><strong>He made his television debut in 2007.</strong></div><p><strong></strong>His first-ever TV project was via an episode of the weekly anthology series <em><strong>Drama City</strong></em>, titled &quot;<strong>For the New School</strong>,<strong></strong>&quot; back in 2007. Within the same year, he also appeared in a series called <em><strong>Chosun Police</strong></em>. As is the case with many actors, he started with minor and supporting roles in dramas like <em><strong>Iljimae</strong> </em>and <em></em><em><strong>Wife Returns</strong></em> before leading a cast in 2015 through the series <em><strong>My Beautiful Bride</strong></em>. He has since starred in series like<strong> </strong><em><strong>Bad Guys 2</strong></em>, <em><strong>Juvenile Justice</strong></em>, <em><strong>Grid</strong></em>, <strong><em>Sweet Home </em></strong>(seasons 2 and 3), <em><strong>High Cookie</strong></em>, <strong><em>No Way Out: The Roulette</em></strong>, and<em><strong> Queen Woo</strong></em>.<em></em><em></em><em></em><em></em><em></em><strong></strong></p><div><br/></div><div style="text-align:center"><img src="https://od2-image-api.abs-cbn.com/prod/editorImage/1781225010768My_Beautiful_Bride_poster.jpg" style="width:500px" class="fr-fic fr-dib"/></div><div style="text-align:center"><br/></div><div><strong>He debuted on the big screen through the 2009 movie </strong><em><strong>The Scam.</strong></em></div><p>His big-screen journey began in 2009 via the crime thriller film <em><strong>The Sca</strong><strong>m</strong></em>. But the movie that first featured him in the main cast was the historical action film <em><strong>War of the Arrows</strong></em>, while the erotic romantic film <em><strong>A Muse</strong> </em>gave him breakthrough popularity. <em></em><em><strong></strong></em>His dossier is a testament to his versatility, as the titles in it range from romance and drama to thriller and action. He has starred in movies like <em><strong>Forgotten</strong>;</em> <em><strong>Illang: The Wolf Brigade</strong></em>; <em><strong>The Gangster, The Cop, The Devil</strong></em>; <em><strong>Intruder</strong></em>; <em><strong>On the Line</strong></em>; <em><strong>Honest Candidate 2</strong></em>; <em><strong>The Devil&#x27;s Deal</strong></em>; and <em><strong>The Roundup: Punishment</strong>. </em>Looking at these titles, it&#x27;s evident he&#x27;s quite a favorite for the action genre, but as seen in <em>Teach You a Lesson</em>, he has comedic timing, too!<em></em><em></em><em></em><em></em><em></em><em></em><em></em><em></em><em></em><em></em><em></em><em></em><em></em><em></em></p><div><br/></div><div><strong>He once accidentally posted something on social media that revealed his romantic side.</strong></div><p>Kim Mu-yeol was so drunk in love that he accidentally revealed his relationship status on social media. He intended to send a DM—a romantic and poetic message—to the woman he was dating; instead, he accidentally published it as a public tweet. </p><div><br/></div><div style="text-align:center"><iframe width="925" height="525" src="https://www.youtube.com/embed/F_2rSF5S99E?si=Ik1LJ0K6F_KXBi82" title="YouTube video player" frameBorder="0" allowfullscreen=""></iframe><br/></div><div><br/></div><div><strong>He is married to actress and vlogger Yoon Seung-ah.</strong></div><p>Following that public Tweet, in February 2012, their agencies confirmed that the two were dating. A little more than three years later, Yoon Seung-ah and Kim Mu-yeol got married in April 2015. </p><p>We see him acting tough onscreen, but in an interview, he said, &quot;I am super playful in front of my wife because I like to see her smile.&quot;</p><p>They recently celebrated their 11th wedding anniversary and shared a wedding photo shoot to mark their relationship milestone.</p><div><br/></div><div><iframe class="instagram-media instagram-media-rendered instagram-media-rendered" id="instagram-embed-1" src="https://www.instagram.com/p/DW5SRGhgaL-/embed/captioned/?cr=1&amp;v=14&amp;wp=864&amp;rd=https%3A%2F%2Fod2-workbench-web.abs-cbn.com&amp;rp=%2F#%7B%22ci%22%3A1%2C%22os%22%3A1215125.0999999978%2C%22ls%22%3A45109%2C%22le%22%3A45510.79999999702%7D" allowtransparency="true" allowfullscreen="" frameBorder="0" height="1009" data-instgrm-payload-id="instagram-media-payload-1" scrolling="no" style="background:white;max-width:540px;width:calc(100% - 2px);border-radius:3px;border:1px solid rgb(219, 219, 219);box-shadow:none;display:block;margin:0px 0px 12px;min-width:326px;padding:0px"></iframe></div><script async="" src="//www.instagram.com/embed.js"></script><div><br/></div><div><strong>He&#x27;s a dad—and a fur dad, too!</strong></div><p>Kim Mu-yeol and Yoon Seung-ah welcomed a son in June 2023. Their son recently turned three, and on Instagram, <a href="https://www.instagram.com/p/DZVwwZVE9tY/?hl=en&amp;img_index=1" rel="noopener noreferrer" target="_blank">Yoon Seung-ah shared</a> a throwback video of their kid alongside snaps from his birthday celebration. </p><p>In many of Yoon Seung-ah&#x27;s social media posts, we get a glimpse of the kind of father Kim Mu-yeol is: loving, doting, and game to play and take lots of walks with his little one. </p><p>This kind of doting-dad energy extends to their fur babies; they currently have three dogs. And they love them so much they would even throw mini parties for them! How adorable! One of their dogs, Bambi, passed away in 2022, but they continue to honor their beloved pet&#x27;s memory through the &quot;We Love Bambi&quot; project that aims to show some love to abandoned dogs every year on December 25th, Bambi&#x27;s birthday.</p><div><br/></div><div style="text-align:center"><span class="fr-img-caption fr-fic fr-dib" style="width:960px;display:block" width="960"><span class="fr-img-wrap"><img src="https://od2-image-api.abs-cbn.com/prod/editorImage/1781320847156521537417_18516718084022617_1111714306435102321_n.jpg" style="width:960px" class="fr-fic fr-dib" width="960"/><span class="fr-inner">Photo from @doflwl</span></span></span></div><script async="" src="//www.instagram.com/embed.js"></script><div style="text-align:center"><br/></div><div style="text-align:center"><span class="fr-img-caption fr-fic fr-dib" style="width:960px;display:block" width="960"><span class="fr-img-wrap"><img src="https://od2-image-api.abs-cbn.com/prod/editorImage/1781321585768669703060_18577263454022617_4964834648274507834_n.jpg" style="width:960px" class="fr-fic fr-dib" width="960"/><span class="fr-inner">Photo from @doflwl</span></span></span></div><div style="text-align:center"><br/></div><div style="text-align:center"><span class="fr-img-caption fr-fic fr-dib" style="width:960px;display:block" width="960"><span class="fr-img-wrap"><img src="https://od2-image-api.abs-cbn.com/prod/editorImage/1781320774214662466857_18117187495654855_6260085219026023815_n.jpg" style="width:960px" class="fr-fic fr-dib" width="960"/><span class="fr-inner">Photo from @doflwl</span></span></span></div><div style="text-align:center"><br/></div><div style="text-align:center"><span class="fr-img-caption fr-fic fr-dib" style="width:960px;display:block" width="960"><span class="fr-img-wrap"><img src="https://od2-image-api.abs-cbn.com/prod/editorImage/1781321660287714124999_18468013708096272_741879529737812410_n.jpg" style="width:960px" class="fr-fic fr-dib" width="960"/><span class="fr-inner">Photo from @praintpc_official</span></span></span></div><div style="text-align:center"><br/></div><p>Lead photos from <strong>@praintpc_official</strong> and <strong>Netflix</strong></p>

<p>Gaining further popularity through "<i>Teach You a Lesson</i>," Kim Mu-yeol proves his versatility with a role that balances humor and heart. Want to learn more about Kim Mu-yeol? Scroll through these fun facts.</p>

Gaining further popularity through " Teach You a Lesson ," Kim Mu-yeol proves his versatility with a role that balances humor and heart. Want to learn more about Kim Mu-yeol? Scroll through these fun facts.

8 Things to Learn About 'Teach You a Lesson' Actor Kim Mu-Yeol

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8 Things to Learn About 'Teach You a Lesson' Actor Kim Mu-Yeol

Grace Libero

Published June 13, 2026 06:00 AM PHT

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Updated June 13, 2026 11:38 AM PHT

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