
Incheon, South Korea
Ong Seong-wu (born August 25, 1995) is a South Korean singer and actor. He is known for his participation in the survival reality show Produce 101 Season 2, where he finished in fifth place, and is a former member of the show's derivative boy group Wanna One. Following Wanna One's disbandment, Ong made his acting debut with the drama At Eighteen (2019) directed by Shim Na-yeon. He also established his career as a solo artist with the release of his first extended play, Layers, on March 25, 2020.

2010

as Self
2015

2011

as Self
2018

as Self
2009

as Self
2011

as Host
2005

2018

as Bae Hyeon-woo
2026

as Joseph / Poong Joon-ho
2022

as Self
2018

as Kang Hee-sik
2023
as Joon-gi
2022
5 ep.

1 episodes

as Self
2 episodes

5 episodes

as Self
1 episodes

as Self
1 episodes

as Self
1 episodes

as Host
2 episodes

24 episodes

as Bae Hyeon-woo
2 episodes

as Self
1 episodes

as Kang Hee-sik
16 episodes

as Self - Contestant
11 episodes

as Self
8 episodes

as Choi Joon-Woo
16 episodes

as Ki Hyeon-ha
1 episodes

as Kang Go-bi
12 episodes

as Lee Soo
16 episodes

as Self
21 episodes

as Kang Min-hwan
12 episodes

10 episodes

as Self
10 episodes

12 episodes

1 episodes

as Self
4 episodes