Yoo Yeon Seok 유연석 (Pg. 1 Updated + YYS/Chilbong Fan project on page 294)

Ahn Yeon-seok lived in Seoul until he was six years old and his family moved to the South Gyeongsang Province because his father, a professor of selenodesy, was posted at a national university there. In his junior year in high school he decided to take up acting, so he followed his brother, who was studying another year to enter university, to Seoul and they lived together near the district of Samseong-dong.

While taking acting classes, the high schooler met a friend who would later work on the costume staff of film director Park Chan-wook. Remembering that he resembled actor Yoo Ji-tae, she gave him a call about auditioning for a role. So without having to pass out his resume, he made his acting debut as Yoo's younger counterpart in the acclaimed 2003 film Oldboy.

Upon graduation from Sejong University with a degree in Film Arts, he resumed his acting career in 2008. At his agency's recommendation, he began using the stage name Yoo Yeon-seok. He took on supporting roles on television, such as the haughty student body president in the horror series Soul and more appealing characters in medical drama Midnight Hospital and Tasty Life. But Yoo received his best reviews yet for playing a sensitive ex-boyfriend searching for his child in indie Re-encounter.

Soon after he became known to mainstream audiences as the rich and spoiled antagonist in the box office hit melodramas Architecture 10, and A Werewolf Boy.

He further raised his profile in 2013, with comedy film Born to Sing and the fantasy series Gu Family Book. Yoo's recently-completed project was the nostalgic campus drama Reply 1994, his first leading role on television. 

Movies

• Royal Tailor | 상의원 Sang Ui-won (2014) - The King
• The Informat | 제보자 Jeboja (2014) - Pending further updates
• Secret Temptation | 은밀한 유혹 Eunmilhan Yoohok (2014) - Sung-Yeol
• Hwayi | 화이 : 괴물을 삼킨 아이 Hwayi : Gwimuleul Samkin Ahyi (2013) - Director Park Ji-Won
• Watch the wrap-up party video here

• Watch a selection of Yeon-seok's parts here
• Watch the Press Conference interview here

• Watch YYS International Fan Club's Eng-subbed video interview here
• BTS photos here: (One), (Two)

Drama Series

• Reply 1994 | 응답하라 1994 Eungdabhara 1994 (tvN / 2013) - Chilbong 
• BTS with Najung here 
• Cast interview here 
• A selection of video clips with Najung here 
• Drambeans recap here 
• BTS of Chilbong practicing baseball
• Reply 1994 Epilogue Ep 1: (Translation), (Video)
• Reply 1994 Epilogue Ep 2: (Translation), (Selected clips)
• NGs (No-Good Takes): (One), (Two)

• Watch the Press Conference here

• Find a selection of the video clips here.

•  Watch selected clips here

• Watch selected clips here

• Watch selected clips here: (One)

• 2013: Yoon Jong Shin (with Sung Shi-kyung) - What Should I Do Tomorrow (내일 할 일) 
• 2013: Hyorin - One Way Love
• View the 'Making Of' Video here
• View the 'Behind the Scenes' videos here

2013: Reply 1994 OST 'Feeling Only You' 

• View the 'Behind the Scenes' video here

2013: Lee Seung-chul (이승철) - The Day to Love (사랑하고 싶은 날 ) Teaser #12011: Honey-G - You Fool (바보야) 

• View 'Behind the Scenes' photos: (One)
• View 'Behind the Scenes' video here

2009: 이오공감 - 사랑이 그리운 날들에 (1992年)