Tunnel

Cho Seung-yeon

Police Station Section Head Chief

Yoon Hyun-min

Kim Sun-Jae

Kim Byong-chul

Kwak Tae-Hee

Lee Young-hee

Jung Sook's mother

Park Myung-shin

Lee Sun Ok

Jo Hee-bong

Jeon Sung-Sik

Lee Shi-a

Shin Yun Suk

Kim Min-sang

Mok Jin-Woo

Hong Gi-jun

Detective

Choi Seung-hoon

Mok Jin Woo [Child]

Heo Sung-tae

Jung Ho Young

Cha Hak-yeon

Park Gwang-Ho

Yang Joo-ho

Oh Ji Hoon [Reporter, 1986] | [Taxi Driver, 2017]

Kim Jung-hak

Kim Wan

Choi Jin-hyuk

Park Gwang-Ho

Kang Ki-young

Song Min-Ha

Lee You-young

Shin Jae-Yi

Kim Dong-young

Jun Sung Shik [Young]

Ham Seong-min

Jung Ho Yeong [Young]

Shin Yong Hwi

-

Moon Sook

Hong Hye Won

No Tae-yeob

Mok Jin Woo [Young]

Yoon Jin-sol

Da Yeong's friend

Yoo Dam-Yeon

Lee Nan Young

Seok Bo-bae

Seo Hee Soo