Cast of Nobody Knows

Main cast

Kim Seo-hyungas Cha Young-jin

Ryu Deok-hwanas Lee Sun-woo

Park Hoonas Baek Sang-ho

Ahn Ji-hoas Go Eun-ho

Cho Han-cheulas Yoon Hee-seob

Yoon Jae-yongas Ha Min Sung

Yoon Chan-youngas Ju Dong-myung

Seo Young-jooas Kim Tae-hyung

Shin Jae-whias Oh Du-seok

Min Jin-woongas Lee Jae-hong

Park Cheol-minas Han Geun-man

Moon Sung-keunas Hwang In-bum

Baek Soo-jangas Park Jin-su

Jang Young-namas Jung So-yun

Park Min-jungas Bae Sun-a

Tae Won-seokas Ko Hee-dong

Jeon Seok-chanas Kim Byung-hee

Kwon Hae-hyoas Jang Gi-ho

Kang Seo-haas Yun Ja Yeong [Seoul police department]