Bae Doona as Yu-jin

Kim Si-eun as So-hee

Jung Hoe-ryn as Jun-hee

Kang Hyun-oh as Tae-joon

Bahk Woo-young as Dong-ho

Lee In-young as Eun-ah

Park Hui-eun as So-hee's Mother

Kim Yong-jun as So-hee's Father

Sim Hee-seop as Former Team Manager

Choi Hee-jin as Newcomer Team Manager

Yoo Jeong-ho as Head Manager

Hwang Jeong-min as School Vice-Commissioner

Park Soo-young as Vice Principal

Heo Jeong-do as Homeroom Teacher

Kim Woo-kyum as Detective Bae

Kim Tae-woong as Detective Kim

Park Yoon-hee as Director

Song Yo-sep as Chief of Criminal Division

Han Hye-ji as Former Team Manager's Wife

Kwon Da-ham as Action Officer

Na Jong-min as Chief Constable

Eom Ok-ran as Supermarket Owner

Jung Soo-ha as Jung-in

Yoon Ga-i as Ji-won

Chu Eun-kyeong as Police