as Joon-seo
as Sang-won
as Ki Sung-Hyun
as Kim Sung-ho
as 경민 - 기억이 들린다 편
as Yu-won
as Soo-young
as Eun-cheol
as Choi Wook-hwan
as Gap-ba
as Lee Cheol-i
as Section Chief Kim
as Soo-Hwan
as Youg-deok
as Man-sik
as Self
as Mang-taek
as Choi Byung-hoon
as Cha In-Tae
as Park Geun-tae
as Jang Yeong-sil
as Lee Min-chul
as Kang Eun-hyuk
as Song Min Ho
as Seo Sung-joon
as Cha Seung-pyo
as Sung Si-hoon
as himself
as Ha Dong-ah
as Kang Dong-Soo
as Yang Man-oh
as Kim Eung Seok
as Kim Joo Won
