
Ko A-sung
Biography
Ko A-sung (born 10 August 1992) is a South Korean actress. She began her career as a child actress, notably in 2006 top-grossing blockbuster The Host. This was followed by major roles in Snowpiercer (2013), Thread of Lies (2014) and Office (2015), as well as the TV dramas Master of Study (2010) and Heard It Through the Grapevine (2015).
Known For

TV
Running Man
2010

TV
Amazing Saturday
Self
2018

TV
You Hee-yeol's Sketchbook
Self
2009

TV
The Seasons
Self
2023

TV
Baeksang Arts Awards
Self
2012

TV
Midnight Diner: Tokyo Stories
Yoona
2016

Film
Snowpiercer
Yona
2013

TV
Show!terview with Jessi
Self
2020

TV
Doona!
Ha-yeon
2023

TV
Next Entertainment, Visionary
Self
2021

Film
The Host
Park Hyun-seo
2006

TV
Heard It Through the Grapevine
Seo Bom
2015

TV
Crime Puzzle
Yoo-hee
2021

TV
Life on Mars
Yoon Na-Young
2018

Film
Pavane
Mi-jung
2026

TV
Tracer
Seo Hey-young
2022

Film
The King
Miss Kim
2017

TV
Radiant Office
Eun Ho-Won
2017

Film
The Beauty Inside
Woo-jin 101
2015

TV
Master of Study
Gil Pul-ip
2010
Filmography
2026FilmTime of Cinema2026FilmPavaneas Mi-jung2025TV인생이 영화2025TVEdward Lee's Country Cookas Self2024FilmBecause I Hate Koreaas Joo Kye-na2023TVDoona!as Ha-yeon2023FilmHoneysweetas Serenade Woman2023TVThe Seasonsas Self2022TVTraceras Seo Hey-young2021TVCrime Puzzleas Yoo-hee2021TVNext Entertainment, Visionaryas Self2020FilmSamjin Company English Classas Lee Ja-young2020TVK-Ocean Pathfinders2020TVShow!terview with Jessias Self2019FilmA Resistanceas Yu Gwan-sun2018TVLife on Marsas Yoon Na-Young2018TVAmazing Saturdayas Self2017TVRadiant Officeas Eun Ho-Won2017FilmThe Kingas Miss Kim2016TVMidnight Diner: Tokyo Storiesas Yoona2016FilmA Melody to Rememberas Park Joo-mi2015FilmRight Now, Wrong Thenas Yeom Bora2015FilmOfficeas Lee Mi-rye2015FilmThe Beauty Insideas Woo-jin 1012015TVHeard It Through the Grapevineas Seo Bom2014FilmThread of Liesas Lee Man-ji2013FilmSnowpierceras Yona2013FilmSnowpiercer International Special Animationas Yona (voice)2012TVBaeksang Arts Awardsas Self2012FilmDuetas Nancy2011Film3.11 A Sense of Home Films2010TVRunning Man2010TVMaster of Studyas Gil Pul-ip2009FilmAfter the Banquetas Mi-rae2009FilmA Brand New Lifeas Ye-shin2009TVYou Hee-yeol's Sketchbookas Self2008FilmRadio Dayzas Sun-deok2007FilmHappy Lifeas Gi-yeong's daughter, Joo-hee2006FilmThe Hostas Park Hyun-seo2004TV울라불라 블루짱as Noh Da-ji—FilmThe Host : Histoires de familleas Go A-sung—FilmNervous—TVI Am Also a Film Director