Kim A-joong

Yun Jin-suk

Joo Won

Lee Ho-tae

Ju Jin-mo

Guk Jang

Baek Do-bin

Oh Gyeong-wi

Bae Sung-woo

Detective Kim

Ju Seok-tae

Cha Tae-hyun

(cameo)

Hwang Tae-kwang

Detective Lee

Kim Ri-won

Madame

Ji Sang-min

Detective Ji

Im Jeong-eon

Mr. Im

Song Ji-hyun

Woman Kissing on the Crosswalk

Song Yeong-gwang

Detective Lee in the Past