On September 22, 2026
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Cast of Once in a Summer
19 credited roles
Lee Byung-hun
Yun Suk-young
Soo Ae
Seo Jung-in
Lee Se-eun
Lee Su-jin
Lee Hae-eun
Bok-ja
Choi Deok-moon
Suk-young's Senior
Jeong Seok-yong
Mr. Kim
NK
Na Ki-soo
Suk-young's Father
Oh Dal-su
Nam Gyun-soo
Yoo Hai-jin
PD Kim
Kim Joong-ki
Senior
PN
Park Nam-hee
Branch School Principal
Park Chae-ik
Literary Society Member
Kim Do-kyoon
Literary Society Member
Son In-yong
Literary Society Member
KJ
Kim Jeong-ha
Old Woman
KK
Kim Kyeong-ran
Old Woman
CJ
Choi Ji-yeon
Old Woman
Park Chan-guk
Detective
CE
Choi Eun-suk
Plainclothes Detective
