Ko Asung (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).

Filmography

• 2026Nervous — Eunbyeol
• 2026Pavane — Mi-jung
• 2026Time of Cinema — Director (segment "Naturally")
• 인생이 영화
• 2024Because I Hate Korea — Joo Kye-na
• Doona! — Ha-yeon
• 2023Honeysweet — Serenade Woman
• Tracer — Seo Hey-young
• Crime Puzzle — Yoo-hee
• K-Ocean Pathfinders
• 2020Samjin Company English Class — Lee Ja-young
• 2019A Resistance — Yu Gwan-sun
• Life on Mars — Yoon Na-Young
• Radiant Office — Eun Ho-Won
• 2017The King — Miss Kim
• 2016A Melody to Remember — Park Joo-mi
• Midnight Diner: Tokyo Stories — Yoona
• Heard It Through the Grapevine — Seo Bom
• 2015Office — Lee Mi-rye
• 2015Right Now, Wrong Then — Yeom Bora
• 2015The Beauty Inside — Woo-jin 101
• 2014Thread of Lies — Lee Man-ji
• 2013Snowpiercer — Yona
• 2013Snowpiercer International Special Animation — Yona (voice)
• 2012Duet — Nancy
• 20113.11 A Sense of Home Films
• Master of Study — Gil Pul-ip
• Running Man
• 2009A Brand New Life — Ye-shin
• 2009After the Banquet — Mi-rae
• 2008Radio Dayz — Sun-deok
• 2007The Happy Life — Joo-hee
• 2006The Host — Park Hyun-seo
• Sad Love Story
• 울라불라 블루짱 — Noh Da-ji
• Devotion
• I Am Also a Film Director
• The Host : Histoires de famille — Go A-sung
• The Miracles of the Namiya General Store

Appearances as themselves (11)

• 21c Woman Shelter — Self - Host
• Edward Lee's Country Cook — Self
• Here for Promo — Self
• Salon Drip — Self
• The Seasons — Self
• Next Entertainment, Visionary — Self
• SNL Korea — Self - Host
• Show!terview with Jessi — Self
• Amazing Saturday — Self
• Baeksang Arts Awards — Self
• You Hee-yeol's Sketchbook — Self