Guest Stars Yoon Joo Sang as Oh Hyun Kyu Lee Jung Gil as Jo Myung Ho Baek Shin as Manager Hwang Yoon Je Moon as Park Sang Hyun Na Yoon as Hwang Tae Sung David McInnis as Ray Kim Hye Jin as Yang Jung In Myung Ji Yun as Hong Soo Jin Park Soo Hyun as Park Joong Kwon Park Yong Gi as Yoo Kang Oh Jung Jong Joon as Kwan Oh Hyun Bang Gil Seung as SWAT Commander Im Hyung Joon as Jin Sa Woo's Subordinate Lee Jung Yong as Military Training Instructor / IRIS Mercenary Ryu Seung Ryong as Head of IRIS mercenaries Son Jung Min as IRIS Mercenary