Jung Hae-in is a South Korean actor. He first made an appearance in AOA Black's music video for "Moya" in 2013 and officially debuted in the series Bride of the Century (2014). Jung gained recognition for his roles in the television series While You Were Sleeping (2017) and Prison Playbook (2017–2018). He has since appeared in the television series Something in the Rain (2018), One Spring Night (2019), D.P. (2021–2023) and Snowdrop (2021–2022).

Bride of the Century, also known as Hundred Year Bride, is a 2014 South Korean television series starring Lee Hong-gi and Yang Jin-sung. It aired on cable channel TV Chosun from February 22 to April 12, 2014 for 20 episodes. The fantasy/romance drama revolves around a family curse that causes the first wife of the first born son to die.