In 2009, Park made her professional theatre debut as Yvonne in
Music Theatre Wichita's production of
Miss Saigon. She spent the following two summers performing in
Pittsburgh Civic Light Opera's Benedum Center production of
Miss Saigon, with which she earned her
Equity card. Park made her Broadway debut as a member of the ensemble in
Mamma Mia! at the
Broadhurst Theatre on February 17, 2014. She left the production on September 21, 2014. From October 2014 to January 2015, Park portrayed Gabrielle in the original U.S. national touring company of ''
Rodgers + Hammerstein's Cinderella''. Park returned to Broadway on April 16, 2015, in her first leading role as Tuptim in the 2015 revival of
The King and I at the
Vivian Beaumont Theater and remained with the production until its closing on June 26, 2016. Park was featured as a principal soloist on the cast recording for which she was nominated for a
Grammy Award. In February 2017, she appeared in the Broadway revival of
Sunday in the Park with George as Celeste #1 and Theresa alongside
Jake Gyllenhaal,
Annaleigh Ashford, and
Ruthie Ann Miles. In the fall of 2017, Park portrayed MwE in the off-Broadway musical
KPOP at the
Ars Nova. She was nominated for a
Drama Desk Award and a
Drama League Award and also won a
Lucille Lortel Award for this role. Park starred as
Gretchen Wieners in the
Tony Award-nominated Broadway musical
Mean Girls, written by
Tina Fey with music and lyrics by
Jeff Richmond and
Nell Benjamin, respectively. The show had its world premiere as an out-of-town tryout at the
National Theatre in Washington, D.C., from October 31, 2017, to December 3, 2017, in which Park originated the role of Gretchen Wieners. The musical, which is based on the
film of the same name, began previews on March 12, 2018, and officially opened on Broadway on April 8, 2018, at the
August Wilson Theatre in New York City. Park received nominations for numerous awards for her role as Gretchen Wieners, including nominations for the
Tony Award for Best Featured Actress in a Musical, a
Drama League Award, and the
Drama Desk Award for Outstanding Featured Actress in a Musical. On March 10, 2019, Park left the production and was replaced by
Krystina Alabado. In June 2019, it was announced that Park would headline a "revamped" production of
Thoroughly Modern Millie from May 6–10, 2020, for
New York City Center Encores!. However, due to the
COVID-19 pandemic, the production was cancelled, and ticket refunds were offered to the public. Park was cast in August 2019 in the role of Mindy Chen in Netflix's
Emily in Paris, opposite
Lily Collins. The series premiered on October 2, 2020, and was renewed for a second season on November 11, 2020. Park's character covered "
La Vie en Rose" in the first season of
Emily in Paris. It was the most downloaded TV song for that week. In October 2020 it was announced that Park would appear as Kaye Fields in
As the Curtain Rises, an original podcast
soap opera from the Broadway Podcast Network. On December 28, 2020, it was announced that Park would star as Colette in a benefit concert presentation of
Ratatouille the Musical, an
internet meme that originated on
TikTok, inspired by the 2007
Disney/
Pixar film
Ratatouille. The concert streamed on
TodayTix on January 1, 2021. In August 2021, it was announced Park would star as
Cinderella in the 2022
Encores! version of
Into the Woods. She was ultimately replaced by
Denée Benton. In 2021 she joined
Girls5eva as Ashley, the fifth member of the female pop group, who died falling off of an infinity pool. She appeared in flashback on the first two seasons on
Peacock and in the third season on
Netflix. Park starred in
Crazy Rich Asians writer
Adele Lim's 2023 directorial debut,
Joy Ride. The R-rated comedy "follows four Asian American women as they travel through Asia in search of one of their birth mothers." In 2023, Park played Naomi in Netflix's dark comedy
Beef and Kimber in the third season of Hulu's
Only Murders in the Building.
Modeling and fashion design During her career, Park has appeared on the covers of numerous fashion and lifestyle magazines such as US' ''
L'Officiel, Shape, Women's Health'' and Canada's
Fashion. She appeared on the February 2023 digital cover of
Vogue Hong Kong. She has appeared in editorials for US'
Paper,
Cosmopolitan,
People and Korea's
Odda. In November 2022, she designed a holiday-themed clothing collection in collaboration with
Rent the Runway. In March 2023, she appeared in an advertising campaign for
Skechers' Uno sneaker. Later that year Park co-designed a sneaker collection, named "Street Glam" with Skechers. ==Philanthropy and activism==