Actor profile

Ko A-sung

10th August 1992 Seoul, South Korea Acting

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).

21 Movies 22 TV Shows 1 In Production 49 Credits

Filmography

Movies & TV Shows

Time of Cinema poster

Time of Cinema 18th March 2026 as Director (segment "Naturally")

Pavane poster

Pavane 19th February 2026 as Mi-jung

Because I Hate Korea poster

Because I Hate Korea 28th August 2024 as Joo Kye-na

Honeysweet poster

Honeysweet 15th August 2023 as Serenade Woman

Samjin Company English Class poster

Samjin Company English Class 21st October 2020 as Lee Ja-young

A Resistance poster

A Resistance 27th February 2019 as Yu Gwan-sun

The King poster

The King 18th January 2017 as Miss Kim

A Melody to Remember poster

A Melody to Remember 21st January 2016 as Park Joo-mi

Right Now, Wrong Then poster

Right Now, Wrong Then 24th September 2015 as Yeom Bora

Office poster

Office 3rd September 2015 as Lee Mi-rye

The Beauty Inside poster

The Beauty Inside 20th August 2015 as Woo-jin 101

Thread of Lies poster

Thread of Lies 13th March 2014 as Lee Man-ji

Snowpiercer poster

Snowpiercer 1st August 2013 as Yona

Snowpiercer International Special Animation poster

Snowpiercer International Special Animation 18th July 2013 as Yona (voice)

Duet poster

Duet 19th April 2012 as Nancy

3.11 A Sense of Home Films poster

3.11 A Sense of Home Films 11th September 2011

After the Banquet poster

After the Banquet 3rd December 2009 as Mi-rae

A Brand New Life 29th October 2009 as Ye-shin

Radio Dayz poster

Radio Dayz 31st January 2008 as Sun-deok

The Happy Life poster

The Happy Life 12th September 2007 as Joo-hee

The Host poster

The Host 27th July 2006 as Park Hyun-seo

21c Woman Shelter poster

21c Woman Shelter 31st May 2026 as Self - Host

인생이 영화 poster

인생이 영화 12th April 2025

Edward Lee's Country Cook poster

Edward Lee's Country Cook 14th February 2025 as Self

Doona! poster

Doona! 20th October 2023 as Ha-yeon

Salon Drip poster

Salon Drip 23rd March 2023 as Self

The Seasons poster

The Seasons 5th February 2023 as Self

Tracer poster

Tracer 7th January 2022 as Seo Hey-young

Crime Puzzle poster

Crime Puzzle 29th October 2021 as Yoo-hee

SNL Korea poster

SNL Korea 4th September 2021 as Self - Host

Next Entertainment, Visionary poster

Next Entertainment, Visionary 18th January 2021 as Self

K-Ocean Pathfinders poster

K-Ocean Pathfinders 18th October 2020

Show!terview with Jessi poster

Show!terview with Jessi 11th June 2020 as Self

Life on Mars poster

Life on Mars 9th June 2018 as Yoon Na-Young

Amazing Saturday poster

Amazing Saturday 7th April 2018 as Self

Radiant Office poster

Radiant Office 15th March 2017 as Eun Ho-Won

Midnight Diner: Tokyo Stories poster

Midnight Diner: Tokyo Stories 21st October 2016 as Yoona

Heard It Through the Grapevine poster

Heard It Through the Grapevine 23rd February 2015 as Seo Bom

Baeksang Arts Awards poster

Baeksang Arts Awards 26th April 2012 as Self

Running Man poster

Running Man 11th July 2010

Master of Study poster

Master of Study 4th January 2010 as Gil Pul-ip

You Hee-yeol's Sketchbook poster

You Hee-yeol's Sketchbook 24th April 2009 as Self

Sad Love Story poster

Sad Love Story 5th January 2005

Nervous poster

Coming soon

Nervous 27th August 2026 as Eunbyeol