Soo Ae

as Soon-yi / Sunny

Jung Jin-young

as Kim Jeong-man

Jung Kyung-ho

as Young-deuk

Ju Jin-mo

as Seong-chan

Shin Hyun-tak

as Cheol-sik

Uhm Tae-woong

as Sang-gil

Jo Mi-ryung

as Jenny

Shin Jung-keun

as Battalion Commander

Ji Il-ju

as Jack of all trades soldier

Yang Young-Jo

as Company Commander

Kim Byung-oh

as Corporal in Sang-gil's Troop

Kim Tae-hyun

as Solider 2 patrolling South Korean stronghold

Lee Young-suk

as Soon-yi's Father

Choi Min-geum

as Soon-yi's Mother

Kim Hee-chang

as Sinister-looking Man

Lee Joo-sil

as Mother-in-Law

Lee Jun-hyeok

as Parting Soldier