Guest Stars Jung Ho Bin as Kang Chul Hwan Yoo Dong Geun as Kwon Yong Gwan Oh Yoon Ah as Oh Sook Kyung Do Ye Sung as Jung Kyung Won Sean Dulake as Andy Lee Ji Hyun as NTS Staff Oh Chang Suk as Lee Dong Hun Kim Yoon Sung as Min Goo Kim Seung Woo as Park Chul Young Yoo Ha Jin as NTS Staff Cha Do Jin as Oh Dae Shik Ahn Jin Kyung as Athena Operative Son Ji Hoon as Hong Jin Suk Arnold Hong as Suk Joon Park Yong Soo as Hwang Ho Young Kim Yoon Tae as Jerome Jung Man Shik as Jae Hyuk Max Changmin as Choi Tae Hyun Park Sung Woong as Jin Young Kim So Yun as Kim Sun Hwa Yoo Tae Woong as Kim Sun Hwa's Husband Lee Ye Sun as Park Seu Mei Lee Sang Hong as Lee Chang
