Kim Sang-kyung
Ryu Jung-ho

Park Yong-woo
Det. Kim Hyung-sa

Han Bo-bae
Park Soo-yeon

Lee Jong-soo
Detective Choi

Jung Il-woo
Ryu Jung-ho (young)

Hahm Eun-jung
Kim Min-hee

Han Soo-yeon
Jung Yoo-jin

Jeong Gyu-su
Jo Ban-jang

Oh Jung-se
Chang-bae

Song Boo-gun
Chang-Bae's group 1

Kwak Min-seok
Tourist 2

Jo Hyun-wu
Firefighter 2

Kim Dong-ha
Guy sitting in the next table

Son Bum-soo
Moderator

Jung Hae-kyun
Min-hee's home room teacher (voice)

Hwang Taek-ha
Hostage

Jung Yoon-seo
Madam at Western Style House

Jo Yeon-ho
Suicidal man

Kim Chae-hyun
School play female MC

Oh Jeong-won
Park Soo-yeon's mother