
Actor
Ko A-sung
Born 1992 · Seoul, South Korea
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).
Acting

Snowpiercer
Yona · 2013

The Host
Park Hyun-seo · 2006

The Beauty Inside
Woo-jin 101 · 2015

Doona!
Ha-yeon · 2023

Right Now, Wrong Then
Yeom Bora · 2015

Midnight Diner: Tokyo Stories
Yoona · 2016

The King
Miss Kim · 2017

Life on Mars
Yoon Na-Young · 2018

A Brand New Life
Ye-shin · 2009

Samjin Company English Class
Lee Ja-young · 2020

A Melody to Remember
Park Joo-mi · 2016

Thread of Lies
Lee Man-ji · 2014

Office
Lee Mi-rye · 2015

Pavane
Mi-jung · 2026

A Resistance
Yu Gwan-sun · 2019

Tracer
Seo Hey-young · 2022

Master of Study
Gil Pul-ip · 2010

Amazing Saturday
Self · 2018

Heard It Through the Grapevine
Seo Bom · 2015

Radiant Office
Eun Ho-Won · 2017

The Seasons
Self · 2023

Happy Life
Gi-yeong's daughter, Joo-hee · 2007

Because I Hate Korea
Joo Kye-na · 2024

Honeysweet
Serenade Woman · 2023