The Smile Has Left Your Eyes cast, including Seo In-guk as the enigmatic Kim Moo-young, Jung So-min portraying the warm-hearted Yoo Jin-kang, and Park Sung-woong as the dedicated detective Yoo Jin-gook.
Table of Contents
Introduction
The Smile Has Left Your Eyes is a gripping 2018 South Korean drama that blends mystery, psychological thriller, and romance into one emotionally intense story. A remake of the acclaimed Japanese series Sora Kara Furu Ichioku no Hoshi, the drama follows the complex relationship between Kim Moo-young, a mysterious man with a dark past, and Yoo Jin-kang, a kind-hearted woman drawn to his pain. As secrets unravel and connections deepen, Jin-kang’s older brother, detective Yoo Jin-gook, becomes entangled in a web of truth, suspicion, and tragedy. Starring Seo In-guk, Jung So-min, and Park Sung-woong, this drama is a haunting journey into love, loss, and redemption.
The Smile Has Left Your Eyes Cast
Seo In-guk as Kim Moo-young
Character: Kim Moo-young is the enigmatic and mysterious male lead. He is a quiet and introverted man who works as an assistant at a microbrewery. At first glance, Moo-young appears emotionally distant and indifferent, but beneath his calm exterior lies a dark and tragic past. His life becomes entwined with Yoo Jin-kang’s after their chance encounter, sparking a complicated and emotional journey. Despite his cold behavior, Moo-young has a vulnerability that makes him a deeply sympathetic character.
About Seo In-guk: Seo In-guk is a versatile actor known for his ability to portray both intense, dramatic roles and charming, light-hearted characters. He gained significant recognition for his role in Reply 1997 and later starred in dramas like The King’s Face and Doom at Your Service. Seo In-guk’s portrayal of Moo-young is hauntingly complex, perfectly capturing the internal struggle of a man haunted by his past.
Jung So-min as Yoo Jin-kang
Character: Yoo Jin-kang is a warm-hearted and kind woman who works as an advertisement designer. After the tragic death of her parents, she was raised by her older brother, Yoo Jin-gook. Jin-kang has a deep sense of empathy and is drawn to people in pain, which leads her to form a connection with Moo-young. She’s initially unaware of the dark secrets surrounding him, but as their relationship deepens, she finds herself facing unexpected dangers. Jin-kang’s emotional journey is one of love, loss, and self-discovery.
About Jung So-min: Jung So-min is a popular actress recognized for her roles in both romantic comedies and more dramatic pieces. She is best known for her role in Playful Kiss, a Korean adaptation of the manga Itazura na Kiss, and Because This Is My First Life. In The Smile Has Left Your Eyes, her portrayal of Jin-kang brings warmth and emotional depth, balancing the intensity of the storyline with her character’s sincerity.
Park Sung-woong as Yoo Jin-gook
Character: Yoo Jin-gook, Jin-kang’s older brother, is a seasoned homicide detective with over 27 years of experience in the police force. As the story progresses, Jin-gook becomes increasingly involved in investigating the mysterious circumstances surrounding Moo-young’s past. While he is protective of his sister, his role as a detective forces him to confront uncomfortable truths. His character is tough and stoic on the outside but reveals emotional layers as he seeks justice.
About Park Sung-woong: Park Sung-woong is an accomplished actor known for his diverse roles in both film and television. He has built a reputation for portraying characters with strong personalities, from hardened criminals to emotional, complex figures. His role as Jin-gook is particularly impactful, showcasing his ability to balance the authority of a detective with the vulnerability of a man facing his own internal conflicts.
Supporting Cast
At Ach Brewery
- Choi Sung-joon as Jung Sang-yoon – The CEO of Ach Brewery, overseeing its operations.
- Kim Kyung-il as Kil Hyung-joo – The Brew Master responsible for crafting the brewery’s beers.
At Won Young Police Station
- Choi Byung-mo as Lee Kyung-cheol – A detective at the Won Young Police Station involved in the investigation.
- Kim Seo-kyung as Hwang Gun – A police officer working alongside Lee Kyung-cheol.
- Han Sa-myung as Lee Jae-min – Another officer at the Won Young Police Station contributing to the case.
At Design Lux
- Park Min-jung as CEO Hwang – The head of Design Lux, a company connected to the main characters.
- Lee Ji-min as Assistant Manager Im – An assistant manager at Design Lux involved in the company’s operations.
Other Characters
- Han Da-sol as Shin Yoo-jin – A character whose interactions with the main leads add intrigue to the plot.
- Lee Ji-ha as Lucy – A nun who plays a role in the unfolding drama.
These characters, alongside those previously mentioned, create a multifaceted and engaging narrative, intertwining their stories with those of the main leads to deliver a compelling viewing experience.
Conclusion
The Smile Has Left Your Eyes delivers a haunting, emotionally charged story, and its powerful impact is amplified by an exceptional supporting cast. Beyond the magnetic performances of the leads—Seo In-guk, Jung So-min, and Park Sung-woong—the supporting characters bring texture, conflict, and nuance to the drama. Whether it’s colleagues at the police station, workers at the brewery, or figures from the characters’ pasts, each role contributes meaningfully to the psychological and emotional unraveling of the story.
The drama’s layers of mystery and tragedy wouldn’t resonate as deeply without this ensemble of well-crafted supporting characters who help drive the plot forward, deepen the central relationships, and add richness to the world it creates. Together, they help transform the series into more than just a romance or thriller—it becomes a profound exploration of identity, memory, and the scars of the past.
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FAQs
Who plays the male lead, Kim Moo-young?
Seo In-guk plays Kim Moo-young, a mysterious man with a dark past and an enigmatic personality. He received critical acclaim for portraying the character’s complexity and emotional depth.
Who is the female lead, Yoo Jin-kang?
Jung So-min plays Yoo Jin-kang, a warm-hearted woman whose life becomes entangled with Moo-young’s. She’s known for her expressive acting and strong emotional delivery.
Who plays Yoo Jin-gook, the detective and Jin-kang’s brother?
Park Sung-woong takes on the role of Yoo Jin-gook, a seasoned detective and protective older brother. His character plays a key role in unraveling Moo-young’s past.
Is Seo In-guk a singer as well as an actor?
Yes! Seo In-guk originally debuted as a singer, winning the first season of Superstar K in 2009. He later transitioned into acting and has since starred in several hit dramas.
What other dramas is Jung So-min known for?
Jung So-min is known for her roles in:
Because This Is My First Life (2017)
Playful Kiss (2010)
Monthly Magazine Home (2021)
What has Park Sung-woong acted in before?
Park Sung-woong is a respected veteran actor. Some notable projects include:
Remember: War of the Son
Man to Man
Rugal
He’s known for playing both charismatic heroes and chilling villains.
Who plays Baek Seung-ah and Jang Woo-sung?
Seo Eun-soo plays Baek Seung-ah, a rich and emotional young woman.
Do Sang-woo plays Jang Woo-sung, her possessive boyfriend.
Are any of the supporting actors rising stars?
Yes! Go Min-si, who plays Im Yoo-ri, has gone on to star in several hit dramas like:
Youth of May
Love Alarm
Sweet Home