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Yim Si-wan

  • Actor
  • Soundtrack
IMDbProStarmeterSee rank
Yim Si-wan
Tracks the incidents that occur when an ordinary company employee begins to get her entire life threatened after she loses her smartphone containing all her personal information.
Play trailer1:26
Unlocked (2023)
6 Videos
31 Photos
Yim Si-Wan is a South Korean actor and K-pop singer. He made his debut as a member of K-pop boy band ZE:A (aka Children of Empire). While some members gained recognition through solo projects, Si-Wan initially struggled to make a splash in the group, which led him to consider stepping away from the entertainment industry and returning to his hometown of Busan to resume his studies in mechanical engineering.

However, his career took an unexpected turn when he landed a minor role in the popular TV series The Moon Embracing the Sun (2012). Although his screen time was brief, his performance left a strong impression on audiences and sparked curiosity about this emerging actor. Once it was revealed that he was Si-Wan from ZE:A all along, he gained attention not only for his musical background but also for his potential as an actor.

Si-Wan's transition to acting took a major step forward with his breakout role in the film The Attorney (2013), in which he portrayed a college student falsely accused of being a communist sympathizer and tortured by the authorities. The film was a massive hit, ranking 8th in Korean box office history at the time, and his performance alongside established actors like Song Kang-Ho earned him critical praise.

The following year, he rose to stardom with his starring role in Misaeng (2014). The TV series, which highlighted the harsh realities of Korea's corporate culture, resonated deeply with audiences, especially office workers. Si-Wan's portrayal of an underdog struggling to find his place in the competitive world struck a chord and turned the series into a cultural phenomenon.

Over the years, Si-Wan has expanded his acting range by playing various characters in film and television, including an undercover cop in The Merciless (2017), a terrorist in Emergency Declaration (2022), a psychopathic serial killer in Unlocked (2023) and a historic marathon runner in Road to Boston (2023). Notably, his performance in The Merciless made him the first K-pop boy band member to be invited to the Cannes Film Festival. In 2022, he was invited to Cannes once again, this time for Emergency Declaration, in which he appeared alongside Song Kang-Ho and Lee Byung-Hun.

More recently, Si-Wan has embraced more intense and complex roles, further demonstrating his acting range. His innocent-looking face paired with his terrifying performances has earned him the nickname "Mal-Nun-Gwang" or "Innocent-eyed lunatic," which has spawned popular memes online.

In 2024, he won the Best Actor award at the Blue Dragon Series Awards for his performance in Once Upon a Boyhood (aka Boyhood) (2023). In the series, he played a comedic and pathetic character, marking a notable shift from his previous roles, once again showcasing his versatility and surprising audiences.

Reflecting on his early years as a K-pop artist, Si-Wan once admitted that he often felt awkward on stage, unsure of where to look. However, when he began acting, he discovered a sense of comfort that ultimately convinced him to pursue a career in it.

Now, over a decade into his career, Si-Wan is listed among the Korean Actors 200 (The Actor is Present) and regarded as one of the most sought-after actors of his generation.
BornDecember 1, 1988
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BornDecember 1, 1988
IMDbProStarmeterSee rank
  • View contact info at IMDbPro
    • Awards
      • 11 wins & 15 nominations total

    Photos31

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    Known for

    Squid Game (2021)
    Squid Game
    8.0
    TV Series
    • Lee Myung-gi
    Once Upon a Boyhood (2023)
    Once Upon a Boyhood
    7.8
    TV Series
    • Jang Byung-tae(as Si-wan Yim)
    Sul Kyung-gu and Yim Si-wan in The Merciless (2017)
    The Merciless
    6.7
    • Jo Hyun-soo(as Si-wan Yim)
    • 2017
    Lee Sung-min, Kang So-ra, Yim Si-wan, Byun Yo-han, and Kim Dae-myung in Misaeng (2014)
    Misaeng
    8.5
    TV Series
    • Jang Geu-rae

    Credits

    Edit
    IMDbPro

    Actor



    • Squid Game
      • Lee Myung-gi
      • Released
      • TV Series
      • 2025
    • Mantis
      • Han-ul (as Im Si-wan)
      • Post-production



    • Squid Game (2021)
      Squid Game
      8.0
      TV Series
      • Lee Myung-gi
      • 2024
    • Once Upon a Boyhood (2023)
      Once Upon a Boyhood
      7.8
      TV Series
      • Jang Byung-tae (as Si-wan Yim)
      • 2023
    • Road to Boston (2023)
      Road to Boston
      7.1
      • Seo Yoon-bok (as Si-wan Im)
      • 2023
    • Unlocked (2023)
      Unlocked
      6.4
      • Oh Joon-yeong (as Si-wan Yim)
      • 2023
    • Summer Strike (2022)
      Summer Strike
      7.8
      TV Series
      • An Dae-beom (as Si-wan Yim)
      • 2022
    • Son Hyeon-ju, Ko Ah-sung, and Yim Si-wan in Tracer (2022)
      Tracer
      7.4
      TV Series
      • Hwang Dong-joo (as Si-wan Yim)
      • 2022
    • Lee Byung-hun and Song Kang-ho in Emergency Declaration (2021)
      Emergency Declaration
      6.8
      • Jin-seok (as Si-wan Yim)
      • 2021
    • Shin Sae-Kyeong and Yim Si-wan in Run On (2020)
      Run On
      7.4
      TV Series
      • Ki Seon-gyeom (as Si-wan Yim)
      • 2020–2021
    • Lee Dong-wook, Yim Si-wan, Lee Jeong-eun, Park Jong-hwan, Lee Hyun-wook, and Lee Joong-ok in Hell Is Other People (2019)
      Hell Is Other People
      7.8
      TV Series
      • Yoon Jong-woo (as Si-wan Im)
      • 2019
    • Im Yoon-ah in The King Loves (2017)
      The King Loves
      7.2
      TV Series
      • Wang Won (as Si-wan Yim)
      • 2017
    • Sul Kyung-gu and Yim Si-wan in The Merciless (2017)
      The Merciless
      6.7
      • Jo Hyun-soo (as Si-wan Yim)
      • 2017
    • Jin Goo, Park Byeong-eun, Yim Si-wan, and Lee Dong-hwi in One-Line (2017)
      One-Line
      5.9
      • Min-jae (as Si-wan Im)
      • 2017
    • A Melody to Remember (2016)
      A Melody to Remember
      7.1
      • Second Lieutenant Han Sang-ryeol (as Si-wan Im)
      • 2016
    • Lee Sung-min, Kang So-ra, Yim Si-wan, Byun Yo-han, and Kim Dae-myung in Misaeng (2014)
      Misaeng
      8.5
      TV Series
      • Jang Geu-rae
      • 2014
    • Triangle (2014)
      Triangle
      6.5
      TV Mini Series
      • Yoon Yang-ha
      • Jang Dong-woo (as Siwan)
      • 2014

    Soundtrack



    • Shin Sae-Kyeong and Yim Si-wan in Run On (2020)
      Run On
      7.4
      TV Series
      • lyrics: "I And You"
      • performer: "I And You"
      • 2020–2021

    Videos6

    Official Trailer
    Trailer 1:26
    Official Trailer
    Trailer
    Trailer 1:58
    Trailer
    Trailer
    Trailer 1:58
    Trailer
    Official Trailer [eng sub]
    Trailer 0:47
    Official Trailer [eng sub]
    The Merciless
    Trailer 1:36
    The Merciless
    Run On (English Sub)
    Trailer 0:45
    Run On (English Sub)
    Summer Strike Trailer
    Trailer 1:06
    Summer Strike Trailer

    Personal details

    Edit
    • Official site
      • Instagram
    • Alternative names
      • Si-wan Im
    • Born
      • December 1, 1988

    Did you know

    Edit
    • Nicknames
      • Shan
      • Yim Siwang

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