2010–2012: Early career Kim made her acting debut in the romance omnibus film
Romantic Heaven. She later appeared in the musical drama ''
What's Up. Kim then starred in the high school series To the Beautiful You, and portrayed a kidnapped student in the horror anthology film Horror Stories''.
2013–2016: Breakthrough and rising popularity '' in 2016 In 2013, Kim appeared in the
KBS Drama Special Waiting for Love. She also starred in
Horror Stories 2, portraying a student involved in black magic. That year, she played an heiress in the teen drama
The Heirs, written by
Kim Eun-sook. The series achieved over one billion views on
Youku, contributing to increased recognition for her role. Kim received the New Star Award at the
2013 SBS Drama Awards for her performance. In 2014, Kim portrayed a high school student and webtoon artist in the crime thriller
Gap-dong. She also appeared in a supporting role in the KBS Drama Special ''The Reason I'm Getting Married''. In December 2014, she signed an exclusive contract with
King Kong Entertainment. In 2015, Kim starred alongside
So Ji-sub in the romance web series
One Sunny Day. Later that year, she made a cameo appearance in the
tvN drama
Hidden Identity as the girlfriend of
Kim Bum's character. In 2016, Kim reunited with writer Kim Eun-sook in the
KBS2 military romance drama
Descendants of the Sun, playing an army surgeon. She won the Excellence Award at the
2016 KBS Drama Awards and the Best Supporting Actress award at the
5th APAN Star Awards for her performance. The series recorded peak viewership ratings of 38.8% and won the
Grand Prize – Television at the
52nd Baeksang Arts Awards. Its international popularity increased Kim's overseas visibility. That year, she co-hosted the
2016 KBS Drama Awards with
Park Bo-gum and
Jun Hyun-moo.
2017–2023: Leading roles and career development In 2017, Kim starred in her first leading role in KBS2's romantic comedy drama
Fight for My Way, portraying Choi Ae-ra, a department store information desk employee aspiring to become an announcer, alongside
Park Seo-joon. The series was noted for its portrayal of young adults facing career challenges and concluded with ratings of 13.8%. Kim won the Excellence Award at the
2017 KBS Drama Awards for her performance. In 2018, Kim appeared in the period comedy-mystery film
Detective K: Secret of the Living Dead, playing a woman with memory loss involved in an investigation. That same year, Kim and her
Descendants of the Sun co-star
Jin Goo made cameo appearances in the historical drama
Mr. Sunshine. In 2019, Kim starred in the historical fantasy drama
Arthdal Chronicles as Tanya, spiritual leader of the Wahan tribe and the counterpart to
Song Joong-ki's character. The drama served as a reunion with Song, following their appearance in the 2016 series
Descendants of the Sun. In December 2019, Kim's contract with
King Kong Entertainment expired, and she chose not to renew it. In February 2020, Kim signed with Salt Entertainment. Later that year, she starred in
Kakao TV's web series
Lovestruck in the City alongside
Ji Chang-wook. To prepare for the role, she underwent surfing training and discussed overcoming childhood
aquaphobia in interviews. In April 2022, Kim starred in the television series
My Liberation Notes, portraying an introverted employee struggling to escape her monotonous life. She was nominated for
Best Actress – Television at the
59th Baeksang Arts Awards for her performance in the series. In June 2022, Kim's contract with Salt Entertainment expired, and she chose not to renew it. On September 29, 2022, she signed with
HighZium Studio.
2024–present: Continued success and recognition '' in 2024 In 2024, Kim starred in the tvN drama
Queen of Tears as Hong Hae-in, a chaebol heiress. The series became the
highest-rated tvN drama with a nationwide viewership of 24.9% for its finale. It also remained in
Netflix's Global Top 10 Non-English TV series rankings for 15 consecutive weeks. Kim received the Prime Minister's Commendation at the
Korean Popular Culture and Arts Awards, and ranked third in
Gallup Korea's Television Actor of the Year survey. ==Public image==