Acting

Lee Seung-jun

Born 13 January 1995 · Seoul, South Korea · 31

Lee Seung-jun, known mononymously as Seungjun and formerly known as J-Us, is a South Korean singer and lyricist under KI Entertainment. He is a member of the boy group ONF and its OFF team sub-unit.

Known for

Highlights

Can I Step In?2020 · Series · Kwon Sang Hae

2026 ONF CONCERT [THE MAP: BEYOND THE HORIZON]2026 · Film · SEUNGJUN

2025 ONF CONCERT [THE MAP:STRANGER’S PATH]2025 · Film · SEUNGJUN

온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 22024 · Film · SEUNGJUN

온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 12024 · Film · SEUNGJUN

온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 22024 · Film · SEUNGJUN

Filmography

Movies

7 films

2026 ONF CONCERT [THE MAP: BEYOND THE HORIZON]2026 · Film · SEUNGJUN

2025 ONF CONCERT [THE MAP:STRANGER’S PATH]2025 · Film · SEUNGJUN

온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 22024 · Film · SEUNGJUN

온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 12024 · Film · SEUNGJUN

온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 22024 · Film · SEUNGJUN

온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 12024 · Film · SEUNGJUN

ONF 2021 LIVE CONTACT :: CODE #1. [REVERSE]2021 · Film · SEUNGJUN

Filmography

Series

4 shows

ONF [FOCUS ON AND OFF]2024 · Series · SEUNGJUN

Can I Step In?2020 · Series · Kwon Sang Hae

The Silence Of IDOL2020 · Series

Idol Radio2018 · Series · Special DJ