Full Cast — Teach You a Lesson (2026)
Kim Moo-yul
Na Hwa-jin
Lee Sung-min
Choi Kang-seok
Jin Ki-joo
Im Han-rim
P.O
Bong Geun-dae
Ahn Ha-young
Choi Ga-yun
Kim Jong-soo
Hwang Gi-tae
Lee Bong-joon
Cho Gyu-cheol
Lee Yeo-jin
Anchor
Baek Ji-hye
Gi-tae's Assistant
Choi Jae-sup
Prison Officer Kang (uncredited) (archive footage)
Jin Si-won
Reporter 3
Kim Eun-hee
Reporter 4
Kim Beong-choun
Lee Cheol-myeon
Lee Seo-han
Seo Beom-su
Lee Ho-cheol
Reporter 1
Song Seon-hyo
Reporter 2
Jeon Bong-seok
Kim Hyeong-ju
Ok Jin-uk
Cho In-beom
Yoo Tae-joo
Park Seong-hwan
Lee Sang-hee
Jung Seong-yeong
Park Seo-yoon
Han Ye-ri
Jang Yo-hoon
Min Ji-ung
Leem Hyun-mook
Yun Min-su
Yoon Tae-sik
Lee Du-hyeon
Choi Hyun-joon
Choi U-seong
Kim Kyun-ha
Kim Su-gyeom
Do Geon-wu
Na Jung-hwan
Lee Woo-je
Jang Seong-gu
Kim Jae-seon
Lee Chi-ho
Bae Seong-il
Prison Warden
Jo Jae-young
Detective
Shin Dong-jun
Lee Jong-su
Lee Seung-noh
Jung Hyun-tae
Lee Jung-hwa
Ms. Min
Moon Dong-ho
Seo Jin-hyeok
Lee Chan-yong
Kim Gyeong-min (uncredited) (archive footage) / Kim Gyeong-min
Lee Seung-gyu
Ryu Jun-hyeong (uncredited) (archive footage) / Ryu Jun-hyeong
Kim Do-gun
Kim Gwang-su (uncredited) (archive footage) / Kim Gwang-su
Kang Joon
Kim Hak-jae (uncredited) (archive footage) / Kim Hak-jae
Choi Sol-hee
Assemblywoman
Jeong Myung-gun
Prison Guard 1
Kim Dong-ryul
Red Name Tag
Kim Jeong-hoon
Red Name Tag
Kim Hyeon-ho
Red Name Tag
Lee Won-jun
Red Name Tag
Jang Min-jun
Red Name Tag
Jeong Gyu-yeong
Red Name Tag
Park Jin-su
Newly Admitted Inmate
Kim Da-hwi
General Inmate
Kim Yeon-jun
General Inmate
Park Eun-ho
General Inmate
Park Jae-beom
General Inmate
Seo Seung-jae
General Inmate
Yang Young-moon
General Inmate
Oh Dae-yang
General Inmate
Youn-ha
General Inmate
Jang Seong-won
General Inmate
Han Zi-hun
General Inmate
Hong Sung-bae
General Inmate
Lee Yeon-xin
General Inmate
Kim Yu-bin
Go Seung-il
Lee Jong-chan
Jeon Ju-won
Seok Hyoun-sung
Lee Sang-cheol
Kwon Ki-hyun
Yoon Dae-hyun
Kim Min-seong
Jinwon High School Student 1
Jeon Ye-ji
Jinwon High School Student 2
Song Yeon-woo
Jinwon High School Student 3
Lee Ji-ho
Jinwon High School Student 4
Han Jae-eun
Jinwon High School Student 5
Ahn Su-bin
Jinwon High School Student 6
Kim Min-seok
Examiner