
Ong Seong-wu
Acting
Born 1995-08-25 · 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.
Known for

Wanna One Go
2017 · TV

Star Road
2018 · TV

Strong Girl Nam-soon
2023 · TV

At Eighteen
2019 · TV

More Than Friends
2020 · TV

Would You Like a Cup of Coffee?
2021 · TV

Produce 101
2016 · TV

Traveler
2019 · TV

Master Key
2017 · TV

Idol Fever
2017 · TV

Law of the Jungle
2011 · TV

Men on a Mission
2015 · TV

WANNA ONE GO: Back to Base
2026 · TV

Wanna City
2017 · TV

Boyfriend on Demand
2026 · TV

Show! Music Core
2005 · TV

Love: Track
2025 · TV

COMEBACK WANNA ONE : Nothing Without You
2017 · TV

워너원 COMEBACK
2018 · TV

Wanna One 컴백 쇼 POWER OF DESTINY
2018 · TV

Running Man
2010 · TV

Amazing Saturday
2018 · TV

You Hee-yeol's Sketchbook
2009 · TV

SNL Korea
2011 · TV

Idol Room
2018 · TV