Ong Seong-wu – K-Cult

Profile

Ong Seong-wu (옹성우) is a South Korean singer and actor, and a former member of Wanna One. One of the leads of the 2026 tvN series Spooky in Love.

Career

Ong Seong-wu finished fifth on Produce 101 Season 2 and debuted with Wanna One in August 2017. After the group’s contract ended he made his acting debut in At Eighteen (2019), winning Best New Actor at the Korea Drama Awards, released the EP Layers (2020), and went on to appear in More Than Friends (2020), Seoul Vibe (2022), Life Is Beautiful (2022), Strong Girl Nam-soon (2023) and the play Shakespeare in Love (2025). In Spooky in Love he plays the hotel executive Kang Min-hwan.

Spooky in Love

See the Spooky in Love series page for the cast, episode count and broadcast dates.

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Facts

Ong Seong-wu debuted as a member of the project group Wanna One in August 2017, after finishing fifth on Produce 101 Season 2. Wikipedia: Ong Seong-wu
Ong Seong-wu made his acting debut in the 2019 drama At Eighteen, for which he won Best New Actor at the Korea Drama Awards. Wikipedia: Ong Seong-wu
Ong Seong-wu released his first solo EP, Layers, in March 2020. Wikipedia: Ong Seong-wu
Ong Seong-wu served his mandatory military service from April 2023 to October 2024. Wikipedia: Ong Seong-wu
Ong Seong-wu plays Kang Min-hwan, a hotel executive, in Spooky in Love (2026). Wikipedia: Spooky in Love
Ong Seong-wu is represented by Fantagio. Wikipedia: Ong Seong-wu

Works

Produce 101 Season 2 Contestant

2017 / Reality show

At Eighteen Choi Jun-woo

2019 / TV show

More Than Friends Lee Soo

2020 / TV show

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

2021 / TV show

Seoul Vibe Jun-gi

2022 / Movie

Life Is Beautiful Jung-woo

2022 / Movie

Strong Girl Nam-soon Kang Hee-sik

2023 / TV show

Shakespeare in Love William Shakespeare

2025 / Theatre

Spooky in Love Kang Min-hwan

2026 / TV show

Awards

Korea Drama Awards Best New Actor

2019 / Korea Drama Awards

Korea Drama Awards Hallyu Star Award

2019 / Korea Drama Awards

Asia Artist Awards Rookie Actor Award

2019 / Asia Artist Awards

Grand Bell Awards New Wave Award

2022 / Grand Bell Awards

FAQ

Was Ong Seong-wu in Wanna One?

Yes. Ong Seong-wu was a member of the project group Wanna One, formed by the top eleven contestants of Produce 101 Season 2.

Who plays Kang Min-hwan in Spooky in Love?

Ong Seong-wu plays Kang Min-hwan, the hotel executive and rival introduced for the series.