ActorLee Si-eon Company
Lee Si-eon
Lee Si-eon (born Lee Bo-yeon, July 3, 1982, in Busan) is a South Korean actor and television personality whose career spans two decades of comedy, drama, and variety. He graduated from the Seoul Institute of the Arts and debuted in film in 2009 under the name given to him by director Kwak Kyung-taek. His breakthrough came with the web drama Reply 1997 (2012), where his comic turn as the devoted Bang Sung-jae earned him a national following. He deepened his range in OCN thriller Prison Playbook (2017) and delivered one of his career-best dramatic performances in My Mister (2018). A familiar face on variety television, Lee Si-eon was a long-running regular on MBC I Live Alone from 2016 to 2020, giving audiences weekly glimpses into his deadpan solo lifestyle. He starred in the action-comedy The Player 2: Master of Swindlers (2024) and joined Dex for the travel variety Adventure by Accident (2024). In 2021 he married actress Seo Ji-seung. Lee Si-eon takes a supporting role in Netflix Bloodhounds Season 2, premiering April 3, 2026.
1 articles7 creditsSouth Korean
Gallery
Filmography
2026
Bloodhounds Season 2K-Drama
Supporting role
2024
The Player 2: Master of SwindlersK-Drama
Lead
2018
My MisterK-Drama
Jung Hee
2017
Prison PlaybookK-Drama
Supporting role
2012
Reply 1997K-Drama
Bang Sung-jae
Other Credits
2024
Adventure by AccidentVariety
Cast member
2016
I Live AloneVariety
Regular cast member
Fans Also Ask
Who is Lee Si-eon?
Lee Si-eon (born Lee Bo-yeon, July 3, 1982) is a South Korean actor and variety personality. He broke through with Reply 1997 (2012), was a long-running regular on I Live Alone (2016 to 2020), and has steadily built a reputation for both comedy and dramatic depth in projects including My Mister (2018) and The Player 2 (2024).
What is Lee Si-eon in for 2026?
Lee Si-eon takes a supporting role in Bloodhounds Season 2 on Netflix, premiering April 3, 2026. He joins an expanded cast that also includes Rain, Park Seo-joon, and Dex, alongside returning leads Woo Do-hwan and Lee Sang-yi.
What variety shows has Lee Si-eon appeared on?
Lee Si-eon is best known in variety for I Live Alone (MBC, 2016 to 2020), where his dry humor and solo lifestyle made him a viewer favorite. He also co-starred in the travel variety Adventure by Accident (2024) with fellow entertainer Dex.
Is Lee Si-eon married?
Yes. Lee Si-eon married actress Seo Ji-seung in 2021. He confirmed the relationship publicly before the wedding and the couple announced the news through their agencies.
Is Lee Si-eon expecting a child?
Yes. Lee Si-eon and his wife, actress Seo Ji-seung, announced in December 2025 that they are expecting their first child. Lee hinted at the news on Instagram on Christmas Day with a balloon decoration reading OH BABY.
