Lee Sung-jae

as Northern group first squad command

Jung Kyung-ho

as Corporal Joo Geun-chi

Choi Ji-hyeon

as Female police of radio team

Yoo Tae-woong

as Northern investigative general

Choo Sang-rok

as Northern group second squad commander

Lee Jeong-ho-I

as Sentinel Mo Reum-jik

kim Dam-hee

as Northern traveling troop

Ji Dae-han

as Northern group platoon commande