My Happy End

Jang Na-ra

Seo Jae-won

Lee Gi-taek

Yoon Teo / Theo Harris

Oh Hyun-joong

Baek Seung-kyu

Son Ho-jun

Heo Soon-young

So I-hyeon

Kwon Yoon-jin

Kim Hong-pa

Seo Chang-seok

Park Ho-san

Nam Tae-ju

Kim Myung-soo

Chairman Kwon Young-ik

Jung Jin-woo

Detective Lee

Choi So-yul

Heo A-rin

Kim Soo-jin

Detective Oh Soo-jin

Lee Seung-hee

Neighbor

Yoo Yong

Doctor

Kim Ji-ah

Cafe worker

Lee Jae-in

Lawyer

Jin Si-won

Reporter

Jang Joon-ho

Judge

Kim Kyeong-il

Lawyer

Kang Shin-chul

Prosecutor

Kim Joon-hyung

Detective

Lee Jong-woon

Professor Han

Jo Eun-sol

Seo Jae-won (Young)

Lee Beom-chan

Psychiatrist

Park Ji-ho

Immigration office staff

Song Young-ah

Kindergarten teacher

Park Sang-hwi

Alumnus

Kim Do-hyeong

Alumnus

Han Ji-eun

Onlooker

Kim Jin-ok

Store owner

Jang Eun-seo

Onlooker

Kim Ye-na

Lee Ji-young

Lee Ga-yeon

Kwon Yoon-jin (Teen)

Jeong Young-do

Director

Go Yong-hwa

Yoon-jin's mother

Kim Geun-young

Chi-young's ex-neighbor

Joung Young-sub

Law Professor Lee Nam-cheol

Kim Dae-gook

Detective

Kim Seung-joon

Alumnus

Jang Ui-don

Party official

Kim Yong-seok

Minister Song

Yoo Ji-hyuk

Park Young-hoon

Kim Chae-hyun

Doctor

Kim Hee-su

Bartender

Im Byeong-gi

Man

Ha Do-kwon

Lawyer

Seo Dong-gab

Lawyer

Jeong Dong-hoon

Detective

Kang Gu-ha

KCSI officer

Yang Chang-wan

Police chief

Choi In-seon

Police officer

Park Seon-a

Board member

Lee Eun-ju

Chang-seok's sister

Joo Sae-byeok

Kim Mi-so

So Hee-jung

Dr. Kim Sun-a

Bae Seong-il

Patient

Seo Eun-joo

Market vendor

Jeon Chi-hwa

Detective

Ok Il-jae

Accountant

Lee Ji-young

Prosecutor

Kim Jung-han

Hot Issue Today host

Ki Hwan

Doctor

Uhm Tae-ok

Fishing pond owner

Kang Ji-yong

Yoon Teo (Young)

Song Ha-hyun

Bully orphan

Shin Tae-yang

Bully orphan

Kong Yi-yeon

Store employee

Park Cho-eun

Nurse (Eps 1)