Beginnings Before her official acting debut in 2006, while in middle school, Park appeared in the short film
Equal in 2005. The clip won the Challenging Reality Award () at the seventh
Seoul International Youth Film Festival (SIYFF 2005). She first appeared on television with a public commercial for
Korea Hydro & Nuclear Power while in high school.
2006–2010: Debut, breakthrough and hiatus Park made her official acting debut in the 2006 high school television series
Secret Campus alongside fellow newcomer
Lee Min-ho. Among the notable projects during the early stage in her career are the historical epic
The King and I and
Peabody Award-winning teen drama
Jungle Fish with
Kim Soo-hyun, based on a true story that depicts the pressures placed on students to achieve and gain admission to prestigious colleges and universities. Park rose to fame after starring opposite
Cha Tae-hyun in comedy
Scandal Makers, which drew 8.3 million viewers to become the
number one top grosser of 2008 and one of
Korean cinema's biggest hits. Described by
Variety as "excellent" in her role as a spunky teenage mom, Park's much-praised performance swept Best New Actress awards in 2009. She was also dubbed as "
Nation's Little Sister" because of its success. She then starred in a
short film directed by
Lee Hyun-seung, human rights-themed omnibus
If You Were Me 4 in 2009. However, in 2010 she became involved in a series of legal disputes with her then-management agency and a film production company, causing the actress to be tied up in lawsuits and unable to work for the next few years.
2011–2014: Return to big screen and mainstream success After she was designated the promotional ambassador (called "PiFan Lady") for the 2011
Puchon International Fantastic Film Festival, Park finally ended her four-year absence from the limelight by headlining the 2012 horror thriller ''
Don't Click. Later that year, she starred alongside Song Joong-ki in fantasy romance film A Werewolf Boy'', which surpassed 7 million admissions to become one of the most successful Korean melodramas of all time. The song her character sings in the film, "My Prince", was released as a digital single and included in the movie soundtrack. In 2013, Park joined the cast of
Law of the Jungle, a reality-documentary program featuring comedian
Kim Byung-man and several celebrities as they explore and survive the New Zealand wilderness. In a departure from her previous sweet, innocent characters, Park played the tough, potty-mouthed leader of her high school gang in
Hot Young Bloods (2014), a
teen romantic comedy set in the 1980s. Park, who was born in
North Chungcheong Province, said she had fun swearing in the southern dialect, though she found it difficult to master, being a mixture of
Jeolla and
Chungcheong dialects.
2015–2019: Television comeback and continued success In 2015, she headlined the mystery thriller
The Silenced, set in a girls' boarding school during the
Japanese occupation. This was followed by
dual roles in romantic comedy
Oh My Ghost, Park's first television series in seven years. Her salary of () per episode made her the highest-paid actress to appear on cable channel
tvN. The series was a commercial and critical hit, and garnered the Best Actress award for Park at the
4th APAN Star Awards. She was also dubbed as the "romantic comedy queen" by the Korean press. , 2015) Park next played the selfish love interest of a
mutant in the
black comedy Collective Invention, and an entertainment news cub reporter in the workplace comedy
You Call It Passion (2015). In June 2016, Park was cast as the title role in
JTBC's series
Strong Girl Bong-soon, which premiered in February 2017, where she played a character with superhuman strength. The series became one of the
highest rated Korean dramas in cable television history. Due to its popularity, it earned her Korea Reputation Center's highest brand value among Korean TV actors and the highest consumer participation rate in February and March 2017. In September 2017, Park began filming the romance film
On Your Wedding Day which premiered in August 2018. She was reunited with
Kim Young-kwang, whom she previously acted with in the 2014 film
Hot Young Bloods. The film was a
box office hit and received positive reviews. Park then starred in tvN's series
Abyss in May 2019, where she played a beautiful prosecutor who transforms into a plain-looking girl after being revived by a mysterious orb. She parted ways with her ten-year agency Fides Spatium in December 2019. Two months later, she signed an exclusive contract with
BH Entertainment.
2020–present: Established actress In December 2020, Park was cast in fantasy romance series
Doom at Your Service alongside
Seo In-guk, which premiered on May 10, 2021, on tvN. In April 2021, she also began filming
Um Tae-hwa's disaster thriller film
Concrete Utopia, alongside
Lee Byung-hun and
Park Seo-joon. It was released theatrically on August 9, 2023. In 2023, Park made a cameo appearance in
Strong Girl Nam-soon as Do Bong-soon. She also starred in
Netflix original series
Daily Dose of Sunshine, which was released on November 3, 2023. In 2024, she was cast as the character Kwon Young-ji for the
Disney+ web series
Light Shop. She was also invited to the
29th Busan International Film Festival as the host of the opening ceremony. In the beginning of 2025, Park starred in the Netflix series
Melo Movie opposite
Choi Woo Shik. In June 2025, the series
Our Unwritten Seoul aired on
tvN and Netflix, where Park took on the complex challenge of playing dual roles as identical twins. This series was successful domestically with record ratings and received global acclaim. It is "one of the calmest and deepest Korean dramas of 2025," wrote
Time magazine about the series. ==Other activities==