Main Characters Lee Hyun Joong 20 main appearances Lee Soo Kyung 17 main appearances Park Woong 15 main appearances
Recurring Guest Characters Yoon Jeongim - State Security 5 guest appearances Marine Dae Young 4 guest appearances Major Choi 3 guest appearances Park Il Kwon 2 guest appearances Kim Joon Bum 2 guest appearances Yum Ha Jin 2 guest appearances Yang Sang Gil 2 guest appearances Park Joo Yong 2 guest appearances Jung Taek Soo 2 guest appearances Baek Seung Jin 2 guest appearances Kim Bum Woo 2 guest appearances Chun Sung Il 2 guest appearances Battalion Commander 2 guest appearances Nurse 1 guest appearances Chun Yong Taek 1 guest appearances Jung Hwa 1 guest appearances