
Actor
Ong Seong-wu
Born 1995 · 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.
Acting

20th Century Girl
Joseph / Poong Joon-ho · 2022

Boyfriend on Demand
Bae Hyeon-woo · 2026

Strong Girl Nam-soon
Kang Hee-sik · 2023

Seoul Vibe
Joon-gi · 2022

Men on a Mission
Self · 2015

At Eighteen
Choi Joon-Woo · 2019

Master Key
Self · 2017

Life Is Beautiful
Park Jeong-woo · 2022

Amazing Saturday
Self · 2018

Idol Room
Self · 2018

SNL Korea
Self · 2011

Traveler
Self · 2019

Would You Like a Cup of Coffee?
Kang Go-bi · 2021

Produce 101
Self - Contestant · 2016

Wanna One Go
Self · 2017

Seongwoo is Alright
Ong Seongwoo · 2017

You Hee-yeol's Sketchbook
Self · 2009

Show! Music Core
Host · 2005

More Than Friends
Lee Soo · 2020

Love: Track
Ki Hyeon-ha · 2025

Cattle Run
Kang Jeong-hoon

Wanna City
Self · 2017

Spooky in Love
Kang Min-hwan · 2026

Starlight Falls
Choi Gyeong-su