Secret Forest

Bae Doona

Han Yeo-jin

Lee Jun-hyuk

Seo Dong-jae

Cho Seung-woo

Hwang Si-mok

Yoon Se-a

Lee Yeon-jae

Park Seong-geun

Kang Won-chul

Jeon Bae-soo

Choi Yun-soo

Choi Jae-woong

Jang Geon

Song Ji-ho

Park Sun-chang

Yoon Tae-in

Seo Sang-won

Jeon Hye-jin

Choi Bit

Yoo Jae-myung

Lee Chang-jun

Choi Mu-sung

Woo Tae-ha

Shin Hae-sun

Young Eun-soo

Lee Kyung-young

Lee Yun-beom

Lee Hae-young

Shin Jae-yong

Lee Ho-jae

Young Il-jae

Kim Young-jae

Kim Sa-hyun

Lee Tae-hyeong

Kim Ho-seob

Choi Byung-mo

Kim Woo-gyun

Kim Hak-sun

Oh Ju-seon

Jung Sung-il

Managing Director Park

Park Jin-woo

Kim Su-chan

Seo Dong-won

Kim Jung-bon

Lee Kyoo-hyung

Yoon Se-won

Jang Seong-beom

Park Kyung-wan

Kim So-ra

Choi Young

Park You-na

Kim Ga-young

Jeon Soo-yeon

Assisting Officer Jo Hye-sun

Chang Ryul

Yoo Jeong O [Detective]

Uhm Hyo-seop

Park Moo-sung

Jung Seung-kil

Baek Jung-gi

Ye Su-jeong

Park Moo-sung's mother

Park Ji-yeon

Jung Min-ha

Kim Beom-soo

Kim Su-hang

Yoon Kyung-ho

Kang Jin-seob

Moon Choi

Lee Yu-an

Kim Dong-hwi

Kim Hu-jeong

Ryu Sung-rok

Jeon Gi-hyeok

Seo Jin-won

Park Gwang-su

Moon Jong-won

Jeon Seung-pyo

Oh Kyung-joo

Ko Chang-yong

Tae In-ho

Kim Byung-hyun

Park Mi-hyeon

Park Gwang-su's wife

Park Seong-il

Lee Dae-seong

Lee Ga-sub

Song Gi-hyeon

Ha Sung-kwang

Kim Myeong-han

Nam Gi-ae

Young Eun-soo's mother

Lee Jae-won

Kim Tae-gyun

Kim Gwi-seon

Nam Jae-ik

Yoo In-soo

Seung-jun

Ki Jin-woo

Won-il

Park Soon-cheon

Hwang Si-mok's mother

Sunwoo Jae-duk

Ahn Seung-ho

Lee Do-hyun

[Seung Jun's father]

Kim Sang-bo

Supreme Prosecutors' Office Staff

Kim Won-hae

No Won-hae

You Seong-joo

Kim Hu-jeong's father

Kang Shin-hyo

Lee Yong-ho

Jin So-yeon

No Ju-eun

Lee Jae-yong

Kim Nam-jin

Gong Da-im

Yang Yu-bin

Ha Min

Kim Ga-young Teacher (Eps 5)

Yoo Ji-hyuk

Surgeon