Go Min Shi
as Lee Eun Yoo
Song Kang
as Cha Hyun Soo
Lee Si Young
as Seo Yi Kyung
Lee Do Hyun
as Lee Eun Hyuk
Yoo Oh Sung
as Master Sgt. Tak In Hwan
Jin Young
as Park Chan Yeong
Kim Moo Yul
as Sgt. Kim Young Hoo
Park Kyu Young
as Yoon Ji Soo
Lee Jin Wook
as Nam Sang Won (in Sang Wook's body)
Oh Jung Se
as Dr. Lim
Kim Si A
as Seo Yi Su
Lee Jin Wook
as Pyun Sang Wook