Guest Stars Yoon Joo Sang as Oh Hyun Kyu Lee Jung Gil as Jo Myung Ho Baek Sung Hyun as Kang Byung Jin David McInnis as Ray Kim Il Woo as Kang Chul Hwan Cha Hyun Jung as Yoo Hae Young Jun Jae Hyung as Pyo Jin Hwan Yoon Joo Hee as Lee Soo Jin Lee Bo Hee as Jung Soo Min Jo Sung Ha as Ha Seung Jin Lee Jae Hoon as NSS Agent Jung Suk Won as Young Baek San Kim Jong Goo as Goo Bon Gil Kim So Hyun as Young Soo Yun Park Gun Tae as Young Yoo Gun Joo Jin Mo as Ha Jae Yong