Cảnh Sát Tập Sự

Sung Dong Il

Professor Yang

Park Ha Sun

Joo Hee

Lee Ho Jung

Lee Yoon Jung

Go Jun

Young choon

Bae Yoo Ram

Jae Ho

Lee Joo Won

Sergeant Park

Choi Kwang Won

[Police academy student]

Choi Ji Min

[Police force alumni]

Han Seung Yoon

[Police academy training group]

Cha Shi Won

[Cadet at police academy]

Jo Joon

Goon Ho

Jung Da Eun

Hyo Jin [Runaway girl]

Kim Na In

[Young Choon's gang]

Jo Hyun Im

[OB-GYN Dept, Cleaner]

Shin An Jin

Professor Shin of disciplinary committee

Jeon Geum Han

[Police uniform tailor]

Oh Yun Gun

[Police Academy student]

Jung Dong Hoon

[Police Officer]