Kang Je-Gyu Director, Writer Jang Dong-gun Lee Jin-tae Actor Won-bin Lee Jin-seok Actor Lee Eun-ju Yeong-shin Actor Gong Hyung-jin Yeongman Actor Jang Min-ho Jin-seok (grandfather) Actor Lee Yeong-ran Mother Actor Choi Min-sik North Korean Captain Actor Kim Su-ro Anti Communist Federation member Actor Jung Doo-hong Adviser Actor Kim Hae-gon Battalion Commander Actor Jeung Ho-bin North Korean Officer Actor Park Dong-bin North Korean Platoon Leader Actor Ahn Kil-kang Sergeant Heo Actor Jo Yoon-hee Jin-seok's Grand daughter Actor Han Ji-hoon Writer Kim Sang-don Writer Lee Dong-jun Music