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 through the TV series "Bride of the Century" the next year. He gained recognition for his main role in 2017 TV series "While You Were Sleeping" and for his supporting role in "Prison Playbook". Jung had his first main lead role in the 2018 drama "Something in the Rain" followed by "One Spring Night" in 2019. Jung gained even greater recognition through his lead roles in "D.P." (2021) and "Snowdrop" (2021–22).