Secret

Cha Seung-won

Kim Seong-ryeol

Song Yun-ah

Yu Ji-yeon

Ryu Seung-ryong

Je-kal

Park Won-sang

Det. Choi

Oh Jung-se

Kyeong-ho

Kim In-kwon

Seok-jun

Park Hyo-ju

Hye-jin

Yang Eun-yong

Eun-young

Ye Su-jeong

Ji-yeon's Mother

Lee El

Young-sook

Choe Yoon-seul

Nurse

Um Tae-goo

Man on Phone

Im Gi-hong

Detective

Yang Geun-seok

Plainclothes Officer

Lee Cheol-min

Cho Dong-cheol

Lee Jae-gu

Goo Cheol-seung

Choi Seong-min

Doctor

Song Ji-in

Poster woman

Jung In-gi

Kang

Kim Dong-joo

Seok-jun's mother