1984Born, Seoul
49Credits
Ahn Yeon-seok (born April 11, 1984), better known by the stage name Yoo Yeon-seok, is a South Korean actor. After making his acting debut in 2003 with a small role in Oldboy, he resumed his acting career in 2008. His notable works include the films Re-encounter (2011), Architecture 101 (2012), A Werewolf Boy (2012), Whistle Blower (2014), and Love, Lies (2016), as well as the television series Reply 1994 (2013), Dr. Romantic (2016), Mr. Sunshine (2018), Hospital Playlist (2020–2021), and When the Phone Rings (2024).
Known for
OldboyYoung Woo-jin
No Other ChoiceChin-ho
When the Phone RingsBaek Sa-eon
A Werewolf BoyJi-tae
The Beauty InsideWoo-jin 1232026Phantom LawyerShin I-rang · 16 episodesShow
2025Tastefully YoursJeon Min · 3 episodesShow
2025Resident PlaybookAhn Jeong-won · 1 episode · Theme Song Performance · 12 episodesShow
2024When the Phone RingsBaek Sa-eon · 12 episodesShow
2023A Bloody Lucky DayGeum Hyuk-soo · 10 episodesShow
2022The Interest of LoveHa Sang-su · 16 episodesShow
2022Narco-SaintsDavid Park · 6 episodesShow
2021Together Rewind1 episodeShow
2021심야병원Yoon Sang-ho · 1 episodeShow
2020Hospital PlaylistAhn Jeong-won · 24 episodesShow
2018Mr. SunshineGu Dong-mae · 24 episodesShow
2018Busted!Yoo Yeon-seok · 3 episodesShow
2016Dr. RomanticGang Dong-ju · 25 episodesShow
2016위키드(WE KID)1 episodeShow
2015Warm and CozyBaek Geon-woo · 16 episodesShow
2013Reply 1994Chil Bong-yi · 21 episodesShow
2013Kangchi, the BeginningPark Tae-seo · 24 episodesShow
2012What is MomYoo Yeon-Seok · 27 episodesShow
2011Late Night HospitalYoon Sang Ho · 10 episodesShow
2010Running GuHeo Ji-Man · 4 episodesShow
2009PossessedBaek Joong-chan · 10 episodesShow
2009DreamNoh Chul-joong · 20 episodesShow
2008General Hospital 2Woo-jin Heo · 17 episodesShow
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