Kim Sun-young is a South Korean actress. She has performed in a variety of popular dramas, including Reply 1988 (2015), Because This is My First Life (2018), Romance is a Bonus Book (2019), When the Camellia Blooms (2019), Vagabond (2019), Crash Landing On You (2019), and Backstreet Rookie (2020). She won the Best Supporting Actress award at the Chunsa Film Art Awards and Wildflower Film Awards for her performance in Communications and Lies. Kim has received the Best Supporting Actress Award at the 56th Baeksang Arts Awards for her role on Crash Landing On You.

Reply 1988 is a South Korean television series starring Lee Hye-ri, Ryu Jun-yeol, Go Kyung-pyo, Park Bo-gum, and Lee Dong-hwi. Beginning in the year 1988, it revolves around five friends and their families living in the same neighborhood of Ssangmun-dong, Dobong District, Northern Seoul. It aired every Friday and Saturday from November 6, 2015, to January 16, 2016, on tvN for 20 episodes.