Geolkabseu

Lamilan

Park Mi-young

Lee Sung-kyoung

Cho Ji-hye

Yunsanghyeon

Jo Ji-chul

Choesuyeong

Yang Jang-mi

Yeom Hye-ran

Chief Civil Service Officer

Wihajun

Woo-jun

Juujae

Philip

Ganghongseog

Yong-seok

Gimdowan

Chan-young

Jeonseogho

Detective Oh

Jobyeong-Gyu

Youngest Detective

Lee Jung-min

Chae Sook-hee

Hajeong-U

Motel Staff

Seongdong-Il

Hwang Bok-hyun

Ile

Young Ji-hye

Ahn Seong-bong

Big Man

Baek Seung-hwan

Police Chief

Sohuijeong

Se-jin's Mother

Kim Min-kyung

Youth Division Detective

Johyeju

Soo-bin

Jack Lyons

JD the Tatooist

Anupam Tripathi

Arabian Subordinate

Choi Byung-yoon

Club Staff

Im-Yeeun

High School Student

Anchanghwan

Kang Sang-doo

Choehyejin

Back Street Nostalgic Girl

Hansuhyeon

Detective Kwak

Gimhansang

Past Citation Moderator

Bagsejin

Girl Cop

Imhyeonseong

Cyber Investigations Police

Park So-eun

Seo-jin

Chris Lyon

Carmelo

Seoseoggyu

Truck Driver in Accident

Anjaehong

Happy Balloons Boss

Gimjun

Chan-woong

Seolchanghui

Seo-jin's Doctor

Gimtaejun

Criminal Affairs Division Civil Petitioner

Baeyulam

Helium Balloon High Schooler

Ogjayeon

New Pacific Suicide Female Victim

Jeongduwon

Flirty Man at Club

Kim Gwang-seop

Shinchon Sunglasses Man

Gimcheolhwan

Helium Balloon High Schooler

Kim Ji-na

Former Female Taskforce

Songjihyeog

Happy Balloon University Student

Lee Moon-bin

Guardhouse Conscripted Policeman

Gambhir Man Shrestha

Arab Owner of Big-sized Clothes Store

Imhyeoncheol

Water Purifier Conscripted Policeman

Ihwaggwang

Past Sang-doo's Subordinate 2

Gangsinha

New Pacific Taxi Driver

Iuisu

Transportation Manager