Si-wan Yim
— Lee Han-wool / Mantis
Park Gyu-young
— Shin Jae-yi
최현욱
— Benjamin Jo
Bae Gang-hee
— Yang Soo-min
Hwang Seong-bin
— Puma Lee
Yoo Soo-bin
— Kim Dong-yeong
Jeon Bae-soo
— Nam Bae-soo
Woo-jin Jo
— Dok-go
Sul Kyung-gu
— Cha Min-gyu
Jun Do-yeon
— Gil Bok-soon
Yang Dong-geun
— Gwang-cheon / Bi-cheon
Kim Joon-bae
— Mr. Bae
Park Kang-seop
— Manager Yoo
도유
— Secretary
안성봉
— M.K Information Desk Staff
서지오
— Leaflet
Esom
— Cha Min-hee (archive footage)
Koo Kyo-hwan
— Han Hee-sung (archive footage)
Kim Sung-oh
— Shin (archive footage)
Lee Yeon
— Kim Young-ji (archive footage)
Choi Byung-mo
— Hyun-chul (archive footage)
김기천
— Su-guen (archive footage)
Park Kwang Jae
— Gwang-man (archive footage)
장인섭
— Yoon-sub (archive footage)
황보정일
— Bar owner
박석원
— Tatto man
황진운
— Young Han-wool
박규빈
— Young Jae-yi
김칠두
— Old man
성일
— Protester