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Once We Were Us poster

Once We Were Us Cast & Characters

Once We Were Us (2026) stars Koo Kyo-hwan as Eun-ho, Mun Ka-young as Jeong-won and Shin Jung-keun as Eun-ho's Father. The drama movie was released January 23, 2026. Below is the full cast and crew.

NR 2026 · 1h 55m 78 Audience
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Movie Trailers
Movie Trailers
Starring Cast
K
Koo Kyo-hwan
Eun-ho
M
Mun Ka-young
Jeong-won
S
Shin Jung-keun
Eun-ho's Father
L
Lee Sang-yeob
Min-jae
K
Kim Seo-won
Park Seung-chan
L
Lim Jae-hyeok
Gyeong-seok
Key crew
Director
Kim Do-young
Screenplay
Yeum Moon-kyoung
Producers
Lee Jung-suk , Justin Choi , Lee Young-han , Song Yong-un
Music
Jay Kim
Cinematography
Shin Tae-ho
Editor
Lee Kang-hee
Production design
Eun Hee-sang
Costume design
Lee Jin-ah

Full cast

21 cast members

Crew by department

32 crew members

Music

Jay Kim
Original Music Composer

Costume & Makeup

Son Eun-kyung
Makeup & Hair
Lee Jin-ah
Costume Design