The Sound of Your Heart Cast, the hit Korean comedy series based on a popular webtoon. Featuring Lee Kwang-soo, Jung So-min, Kim Dae-myung, and more — explore their roles and on-screen chemistry in this laugh-out-loud sitcom.
Table of Contents
Introduction
With its quirky humor and exaggerated slice-of-life storytelling, the show quickly gained a loyal fanbase both in Korea and internationally. Central to its charm is the talented cast, led by Lee Kwang-soo as the eccentric webtoon artist Jo Seok, and Jung So-min as his patient yet fiery girlfriend. Alongside them, a strong supporting cast amplifies the comedic chaos, making every episode a blend of absurdity and heartwarming moments. This introduction dives into the actors who brought these unforgettable characters to life.
The Sound of Your Heart Cast
Lee Kwang-soo as Jo Seok
Lee Kwang-soo plays the lead role of Jo Seok, a clumsy, awkward, and hilariously unlucky webtoon artist who is loosely based on the real-life creator of the original webcomic. Known for his excellent comedic timing and physical humor, Lee Kwang-soo brings a lovable goofiness to the character. His portrayal is both exaggerated and endearing, making Jo Seok a relatable and memorable protagonist.
Lee Kwang-soo rose to fame through variety shows like Running Man and has proven his acting range in various dramas and films. His role in The Sound of Your Heart is widely praised for showcasing his unique comedic flair.
Jung So-min as Choi Ae-bong
Ae-bong is sweet and grounded, often serving as the voice of reason in contrast to Jo Seok’s chaotic antics. Jung So-min’s portrayal strikes a perfect balance between affection and exasperation, making her a fan favorite.
Known for her versatility, Jung So-min has starred in both romantic dramas and comedies, including Because This Is My First Life and Playful Kiss. Her chemistry with Lee Kwang-soo adds warmth and charm to the series.
Kim Byung-ok as Jo Seok’s Father
Veteran actor Kim Byung-ok plays Jo Seok’s grumpy and stern father, a man who constantly gets caught up in his sons’ absurd situations. His strict demeanor and comic outbursts contrast perfectly with the rest of the cast’s antics, adding a multi-generational layer of humor.
Kim Mi-kyung as Jo Seok’s Mother
Kim Mi-kyung brings warmth and wit to the role of Jo Seok’s supportive but no-nonsense mother. A familiar face in Korean dramas, her performance balances the family dynamic with both comedy and heart.
Supporting Cast
Ahn Gil-kang as Ae-bong’s Father
Ahn Gil-kang plays Choi Ae-bong’s father, a gruff and intimidating man who disapproves of Jo Seok at first.Ahn Gil-kang is known for his strong character roles and brings both authority and comedy to the part.
Moon Ji-yoon as Jo Joon’s Friend
The late Moon Ji-yoon appears in several episodes as a friend and sidekick to Jo Joon, often joining in or amplifying Jo Joon’s outrageous behavior. His role, though minor, adds an extra layer of absurdity and comedic unpredictability to scenes involving the brothers.
Yoo Min-sang as the Landlord
Yoo Min-sang portrays the grumpy landlord of Jo Seok’s apartment. His recurring clashes with Jo Seok—often involving unpaid rent or property damage—create classic sitcom moments. As a comedian in real life, Yoo Min-sang enhances the show’s lighthearted energy.
Ryu Hye-rin as Jo Joon’s Love Interest
Ryu Hye-rin appears in later episodes as a potential romantic interest for Jo Joon. Her character is as quirky and unpredictable as Jo Joon himself, making their interactions especially memorable.
Guest Appearances and Cameos
One of the show’s highlights is its frequent cameos by well-known Korean actors and comedians, often playing exaggerated versions of themselves or over-the-top characters. These appearances add variety and surprise throughout the episodes.
Conclusion
The charm of The Sound of Your Heart lies not only in its offbeat humor and clever storytelling but also in the outstanding performances of its cast. Led by Lee Kwang-soo, Jung So-min, and Kim Dae-myung, the actors breathe life into a world that’s both absurdly funny and surprisingly heartfelt. Supported by a talented ensemble and memorable cameos, the cast brings out the essence of Jo Seok’s beloved webtoon with perfect comedic chemistry. Whether you’re a fan of slapstick humor, quirky family dynamics, or just need a good laugh, the performances in The Sound of Your Heart are sure to leave a lasting impression.
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FAQs
Who plays Jo Seok in The Sound of Your Heart?
Lee Kwang-soo stars as Jo Seok, the main character based on the real-life webtoon creator. Known for his comedic roles and his longtime stint on Running Man, Lee Kwang-soo delivers a memorable performance full of physical humor and quirky charm.
Who is the actress playing Ae-bong, Jo Seok’s girlfriend?
Jung So-min plays Choi Ae-bong, Jo Seok’s loyal yet fiery girlfriend (and later wife). She balances sweetness with sass and is known for her work in dramas like Because This Is My First Life and Playful Kiss.
Who plays Jo Seok’s older brother, Jo Joon?
Kim Dae-myung takes on the role of Jo Joon, Jo Seok’s bizarre and freeloading brother. Kim is also known for his roles in Misaeng and Hospital Playlist, showcasing his versatility as both a dramatic and comedic actor.
Are the characters based on real people?
Yes. The characters in The Sound of Your Heart are based on real-life individuals from the life of webtoon artist Jo Seok, including himself, his wife, and his family. The actors bring exaggerated versions of these personalities to the screen for comedic effect.
Is Lee Kwang-soo a comedian?
Technically, Lee Kwang-soo is an actor and variety star, not a stand-up comedian. However, his natural sense of humor and timing—especially from his years on Running Man—have earned him a reputation as one of Korea’s funniest entertainers.
Do any other famous actors appear in the show?
Yes! The series features numerous guest stars and cameos by popular Korean actors and comedians, adding surprise and variety to many episodes.
Is there a different version of the show with a different cast?
Yes. A Chinese remake of The Sound of Your Heart was released in 2019 with a different cast.