I first saw him in Chil Woo The Mighty in which he played an assassin and then I saw him in Sungkyunkwan Scandal. I loved his acting from the beginning and in Sungkyunkwan Scandal I fell for Song Joong Ki. Although Fashion King mostly sucked because of his co-actress and the ending, I still feel that Yoo Ah In is one of the best actors of his age.


  • Name: Yoo Ah-In
  • Hangul: 유아인
  • Birth Name: Uhm Hong-Sik (엄홍식)
  • Birthdate: October 6, 1986
  • Birthplace: Daegu, South Korea
  • University: Dankook University
  • Height: 178cm.
  • Blood Type: A
  • Twitter: @seeksik
This is a Korean name; the family name is Uhm. In stage/pen name, the surname is Yoo.

Yoo Ah-in (born Uhm Hong-shik on October 6, 1986) is a South Korean actor. He is best known for his roles in theperiod drama Sungkyunkwan Scandal and the coming-of-age film Punch.

Uhm Hong-shik, a Daegu native, dropped out of high school to pursue acting. Using the stage name Yoo Ah-in, he made his acting debut in the youth series Sharp 1 in 2003. Various roles on film and television followed, from a lost teenager in low-budget indie Boys of Tomorrow, the lonely warrior in Chil-woo the Mighty, to the energetic patissier aspirant in Antique, and a cheeky assistant in He Who Can’t Marry.

Yoo’s breakout role came in popular 2010 period drama Sungkyunkwan Scandal. This was followed by his first big-screen leading role in the coming-of-age film Punch, a critical and box-office success in 2011. His costar, veteran actor Kim Yoon-seok predicted that “In the next 10 years, he will be one of the biggest names in Korean cinema.”

But Yoo’s next project Fashion King was poorly received by audiences, particularly its controversial ending.

Considered one of the most outspoken and politically minded Korean actors of his generation, Yoo drew media attention in late 2012 when he tweeted a strongly worded criticism against the withdrawal of Ahn Cheol-soo from the presidential race.

Cast as King Sukjong in the 2013 period drama Jang Ok-jung, Living by Love, a revisionist take on infamous royal concubine Jang Hui-bin, Yoo called the role one of the biggest challenges of his career and he garnered favorable press reviews for his mature, charismatic and versatile portrayal.

He then played the titular character in the film Tough as Iron, about a Busan pier worker who takes care of his mother afflicted with dementia and kidney disease. Yoo and Tough as Iron costar Jung Yu-mi later collaborated again as voice actors in the animated film The Satellite Girl and Milk Cow.

In 2014, he appeared in a quirky supporting role in Lee Han’s Thread of Lies (this was Lee’s second film adaptation of a Kim Ryeo-ryeong novel after Punch). Cable melodrama Secret Love Affair followed, in which Yoo played a piano prodigy who falls for a married, much older woman.

Two high-profile films starred Yoo in 2015. He played an amoral young millionaire who faces off with a detective in Ryoo Seung-wan’s crime thriller/comedy Veteran, and as the tragic Crown Prince Sado in Lee Joon-ik’s period drama The Throne.



Year Film Role
2006 Boys of Tomorrow Jong-dae
2007 Shim’s Family (aka Skeletons in the Closet) Shim Yong-tae
2008 Antique Yang Ki-beom
2009 Sky and Ocean Jin-goo
2011 Punch Do Wan-deuk
2013 Tough as Iron Gang-cheol
2014 The Satellite Girl and Milk Cow (animated) Kyung-chun (voice)
Thread of Lies Choo Sang-bak
2015 Veteran Jo Tae-oh
The Throne Crown Prince Sado
2016 Happy Facebook


Year Title Role Network Notes
2003 Sharp 1 art student Yoo Ah-in
(guest appearance)
2004 April Kiss 16-year-old Kang Jae-sup KBS2
2005 Shi-eun & Soo-ha Min-suk KBS2 Drama City episode
2008 Chil-woo the Mighty Heuksan / Kim Hyuk KBS2
2009 He Who Can’t Marry Park Hyun-kyu KBS2
2010 Sungkyunkwan Scandal Moon Jae-shin KBS2
2011 Yoo Ah-in’s Launch My Life Himself Mnet Fashion/business reality show
2012 Fashion King Kang Young-gul SBS
2013 Jang Ok-jung, Living by Love King Sukjong SBS
2014 Secret Love Affair Lee Sun-jae jTBC
Discovery of Love Woodworking class student
(cameo, episode 16)
2015 Six Flying Dragons Yi Bang-won SBS

Music video

Year Song Title Artist
2004 발자국 (“Footprints”) T.O
2012 “Only One”[31][32] BoA


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