The Regular Tardy Student

Kim Seung-ho

Jang Seong-hak

Hwang Jeong-sun

Mrs. Gwacheon

Jeon Young-seon

Suk-jan

Kim Seok-hun

Gab-jun

Kim Wun-Ha

Eul-jun

Ji-hie Choi

Bae-yeong

Heo Chang-kang

Hwang Hae-san

Kwang Ho Lee

Byeong-jun

Kim In-seon

Kid

Kim Chil-seong

Chief Detective

Jeong Ae-ran

Mrs. Choi

Ju Seon-tae

Executive Director Ju

Dokgo Sung

Bae-yeong's Brother

Lee Ye-min

Kim Su-i

Lim Hae-rim

Foreman

Park Sang-ik

Mr. Yoon

Kim Mi-seon

Bugler

Kim Se-ra

Sesame Seller

Yum Hea-sook

Schoolmistress

Seok Un-a

English Teacher

Ham Guk-jeol

Madame

Kim Mi-ra

Madame

Song Hwa-chun

Detective

Park Seung-jin

Judo Master

Kim Doo-an

Prison Guard

Song Eok

Cop

Lee Ji-yeon

Jin-su

Lee Gyu-ik

Lee Tai-woo

Je-rae Won

Production design

Seok-jun Jang

Hwang Hak-bong

Im Kwon-taek

Director

Kim Ji-jeong

Script supervisor

Kim Hui-su

Editor

Im Yeong-chang

Choe Jong-seong

Jang Je-won

Jeon Bong-pil

Park Chang-ho

Lee Nam-song

Yu Hwan-chun

Executive producer

Lee Gap-yong

Executive producer

Kim Jin-moon

Producer

Yong-hwan Kim

Sim Jae-hun

Lee Jae-woong

Sound recordist

Yu Il-su

Chu Sik