Ong Seong-wu - Actor Profile

Ong Seong-wu

Acting
Updated: May 18, 2026
7Total Films
8.2 Highest Rated
Born: Aug 25, 1995
Birth Place: Incheon, South Korea

About Ong Seong-wu

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.

Ong Seong-wu Movies & Career Overview

The filmography of Ong Seong-wu reflects a strong mix of popular and critically appreciated roles. Across 7 major appearances, the actor has built a reputation through performances in multiple genres and storytelling styles.

Dominant Genre

A large portion of Ong Seong-wu's work falls within the Drama genre, where audiences tend to respond most strongly to their on-screen presence.

Success Ratio

Approximately 57% of Ong Seong-wu's films maintain ratings above 6.5, indicating a consistent level of audience approval.

One of the most highly rated entries in their career remains 20th Century Girl, which stands out as a key performance.

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Best Ong Seong-wu Movies Ranked

Must-watch hits from Ong Seong-wu's career based on audience ratings.

Full Filmography

Every movie Ong Seong-wu has appeared in, with audience ratings and verdicts.

YearMovieCharacterSuccessMore
2022 20th Century Girl Joseph / Poong Joon-ho Super Hit Similar →
2022 Life Is Beautiful Park Jeong-woo Hit Similar →
2022 Seoul Vibe Joon-gi Hit Similar →
2018 Wanna One World Tour One: The World in Seoul Self Flop Similar →
2017 Seongwoo is Alright Ong Seongwoo Super Hit Similar →
N/A Starlight Falls Choi Gyeong-su Flop Similar →
N/A Cattle Run Kang Jeong-hoon Flop Similar →

Ong Seong-wu - Frequently Asked Questions

What is the best movie of Ong Seong-wu?

According to audience ratings, the best movie starring Ong Seong-wu is "20th Century Girl" with a rating of 8.2/10.

How many movies has Ong Seong-wu acted in?

Ong Seong-wu has been featured in at least 7 major films throughout their career.

What are some other popular movies by Ong Seong-wu?

Other notable films include "Seongwoo is Alright", "Life Is Beautiful", and "Seoul Vibe".

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