Jung Hye-sung (정혜성; born Jung Eun-joo on April 29, 1991) is a South Korean actress and model. She is best known for supporting roles in Love in the Moonlight (as Princess Myung-eun) and Good Manager (as Hong Ga-eun), her first lead in Oh, the Mysterious (2017), and the film Mate (2019). Standing 168 cm tall with blood type B, she graduated from Sungkyunkwan University and continues active work in drama, variety (including MC duties on I Am Solo), and theater as of 2026.
During her university years her striking looks earned campus attention; she has shared lighthearted anecdotes about her father’s strict protective measures, including following her to a college membership-training trip, which fans later nicknamed a “beauty certificate” story.
Personal Profile
- Age: 35 (as of 2026)
- Height: 168 cm
- Blood Type: B
- Zodiac: Taurus
- Education: Sungkyunkwan University (Acting Arts)
- Instagram: @junghyesung91
- Family: Parents, older sister, younger brother
- Friends : Hwang Sun-hee (황선희)
Career
Jung began in modeling before fully transitioning to acting. She made her acting debut in 2009 in the MBC drama Friend, Our Legend (as Shin-ae). Early credits followed in To the Beautiful You (2012), Special Affairs Team TEN 2, the sitcom Potato Star 2013QR3, Glorious Day, and Pride and Prejudice (2014).
She continued building experience through 2015 with roles in Blood, the daily drama A Daughter Just Like You (earning a Best New Actress nomination at the MBC Drama Awards), Oh My Venus (as Jang Yi-jin), and Remember: War of the Son (as Nam Yeo-kyung).
Wider recognition arrived with the 2016 historical hit Love in the Moonlight (Moonlight Drawn by Clouds), in which she played Princess Myung-eun. The role required extensive special-effects makeup and showcased her range; it brought a Best Supporting Actress nomination at the KBS Drama Awards.
In 2017 she delivered standout supporting work as the earnest intern Hong Ga-eun in the workplace comedy Good Manager (Chief Kim) opposite Namgoong Min and as Yoon Jin-sook in Manhole. These performances earned her the Best Supporting Actress award at the 2017 KBS Drama Awards. The same year she secured her first leading role as Jin Jin-young in the SBS mystery-comedy Oh, the Mysterious (Doubtful Victory).
Film Debut and Continued Work
Jung made her big-screen debut in the 2019 romance Mate opposite Shim Hee-sub. Additional television and web credits include Pegasus Market (2019), I Hate You, Juliet!, Joseon Exorcist (2021, as Moo-hwa), and New Normal Zine (2022).
She has also appeared in variety programming: We Got Married Season 4 (paired with Gong Myung), King of Mask Singer, Dunia: Into a New World, and more recently as an MC on beauty and lifestyle shows. In 2026 she joined the popular dating variety I Am Solo (and its “Love Forever” / “NaSolSaGye” iterations) as a main MC alongside Defconn and Kyungri, bringing candid energy and drawing both praise and lively reactions from co-hosts and viewers.
That same period she expanded into theater for the first time, taking the role of Roja in the black comedy Drunk People (performed in Seoul). She also appeared in the JTBC romantic comedy Efficient Dating for Singles / The Practical Guide to Love (2026) as Jung Hyun-min, and made a special appearance in Shin’s Project.
Agency history includes early representation under FNC Entertainment, later J-Wide Company (contract ended 2022), and more recent affiliation with BigPicture; reports in 2026 indicated the parties would not renew.
Filmography
Television: Friend, Our Legend (2009), To the Beautiful You (2012), Oh My Venus (2015), Remember (2015), Love in the Moonlight (2016), Good Manager (2017), Manhole (2017), Oh, the Mysterious (2017–2018), Pegasus Market (2019), Joseon Exorcist (2021), New Normal Zine (2022), Efficient Dating for Singles / The Practical Guide to Love (2026).
Film: Mate (2019).
Variety / Other: We Got Married, I Am Solo MC (2026–), theater Drunk People (2026).
FAQ
How old is Jung Hye-sung?
She was born on April 29, 1991, making her 35 years old.
What is Jung Hye-sung’s height?
168 cm.
What is Jung Hye-sung’s Instagram?
@junghyesung91.
Which agency is Jung Hye-sung under?
She has worked with several agencies over the years (including FNC and J-Wide); more recent reports linked her to BigPicture, with contract developments noted in 2026.
What are Jung Hye-sung’s most famous dramas?
Love in the Moonlight (Princess Myung-eun), Good Manager / Chief Kim (Hong Ga-eun), Oh My Venus, Remember, and her lead role in Oh, the Mysterious.
Is Jung Hye-sung married or dating anyone?
She keeps her personal relationships private; no confirmed public relationship details are widely available.
What is Jung Hye-sung doing now?
As of 2026 she has appeared in the JTBC drama Efficient Dating for Singles, made her theater debut, and serves as an MC on the I Am Solo variety franchise.