
Biography
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.
Acted in 17
2020s
- 2026
Cattle Run
Kang Jung-hun
- 2025
- 2023
- 2022
- 2021
Would You Like a Cup of Coffee?
Kang Go-bi · 12 episodes
- 2020
2010s
- 2019
- 2017
Idol Fever
TV
Seongwoo is Alright
Ong Seongwoo
- 2011
- 2010
No release date
Starlight Falls
Choi Gyeong-su
Appearances18
2020s
- 2026
WANNA ONE GO: Back to Base
Self · 12 episodes
2010s
- 2019
Traveler
Self · 10 episodes
- 2018
Wanna One Comeback: Power of Destiny
Self · 1 episode
Wanna One World Tour One: The World in Seoul
Self
Wanna One Comeback: I Promise You
Self · 1 episode
- 2017
Wanna One Comeback: Nothing Without You
Self · 1 episode
Wanna City
Self · 4 episodes
Wanna One Go
Self · 21 episodes
- 2016
- 2015
- 2011