Biography
Ko Asung, also credited as Go Ah-sung, is a South Korean actress. Born on 10 August 1992 in Seoul, she began her career as a child actress. She made her film debut in The Host (2006).
She is known for her role as Yona in Snowpiercer (2013). Other film roles include those in Thread of Lies (2014), Office (2015) and A Resistance (2019). Television credits include Master of Study (2010) and Heard It Through the Grapevine (2015). She studied psychology at Sungkyunkwan University.
