Jung Hae-in (born April 1, 1988) is a South Korean actor who first gained attention with his appearance in AOA Black's music video "Moya" in 2013. He officially debuted in the TV series Bride of the Century (2014), but his rise to prominence came with his roles in the hit dramas While You Were Sleeping (2017) and Prison Playbook (2017–2018). Jung continued to garner widespread recognition with lead roles in popular dramas such as Something in the Rain (2018), One Spring Night (2019), and the Netflix original D.P. (2021–2023). He also starred in Snowdrop (2021–2022) alongside Jisoo of BLACKPINK. Jung's filmography includes historical roles in films like The King's Case Note (2017) and Heung-boo: The Revolutionist (2018), as well as romantic leads in Tune in for Love (2019) and Start-Up (2019). In addition to his acting, he hosted the show Jung Hae-in's Travel Log and starred in the Disney+ series Connect (2022). Jung has also ventured into music, releasing the single "My Song" for the Connect OST in 2022, and "The Truth" for the Love Next Door OST in 2024.