曹政奭

조정석

饰：智焕

林秀晶

임수정

饰：允贞

李阵郁

Jin-wook Lee

饰：建宇

李敏豪

Min-ho Lee

饰：姜胜范

李己雨

이기우

饰：Detective Lee

郑雄仁

Woong-in Jeong

饰：姜亨哲

温宙完

Ju-wan On

饰：朴老师

郑镇荣

정진영

饰：姜班长

金宝罗

김보라

饰：崔熙周

李姃垠

이정은

饰：美声高中女老师 2

赵仁宇

In-woo Jo

饰：Detective Kang

申智秀

신지수

饰：尹善经

李春

Lee Bom

饰：Dodge ball female student

朴俊奎

박준규

饰：Real estate agent

全信焕

Jeon Sin-hwan

尹炳熙

윤병희

饰：Gambler

许政度

Jeong-do Heo

饰：(刑警)

曹善默

Sun-mook Jo

饰：西京高中校长

Lee Sae-ro-mi

Lee Sae-ro-mi

文在元

Jae-won Moon

饰：Fellow detective

南泰富

Tae-boo Nam

饰：Chinese restaurant male student

黃仁准

In-joon Hwang

金光炫

Kim Kwang-hyun

饰：(美聲高中 老師)

张宥

Sang-hee Lee

饰：택시기사

黄仁俊

In-Jun Hwang

饰：咨询室刑事1

金元镇

Won-jin Kim

饰：여주 형사

车恩在

Eun-jae Cha

饰：건우 수술 간호사1

李基宇

이기우

饰：李警官

林艺真

임예진

饰：副校长

朴载正

박재정

饰：男老师4

权信焕

Shin-Hwan Joon

饰：Biology Teacher

金智训

Ji-hoon Kim,김지훈

饰：Counseling center detective #2

Won Choi

饰：Seokyung High School male teacher #3

Kwang-Hyeon Kim

饰：Teacher of Misung Highschool