Ong Seong Wu, born in Incheon, South Korea, is a singer and actor under Fantagio. He graduated from Dong Seoul University with a major in Performing Arts. Before being signed as an acting trainee in 2016, he worked as a model for various online shopping websites. In 2017, he competed on the survival show "Produce 101 Season 2", making it as a member of the show’s project group Wanna One. After Wanna One's disbandment at the end of 2018, he continued his career as an actor and solo musician and ultimately made his acting debut in the 2019 coming-of-age drama “Moment at Eighteen” (열여덟의 순간). On April 17, 2023, Seong Wu enlisted for his mandatory military service as an active duty soldier. (Source: MyDramaList) Watch drama online for free.