Guest Stars Chun Ho Jin as Baek In Soo Jang Hyun Sung as Jang Tae Ho Lee Shi Un as Ji Se Hoon Kim Bo Mi as Park Song Yi Choi Ah Jin as Son Jung Hye Oh Hee Joon as Yang Sang Shik Han Ji Sun as Choi Sul Ah Oh Na Ra as Sharon Kim Kim Hyun Jin as Jang Chul Joon Kang Shin Il as Im Suk Hoon Shin Joo Ah as Pi Eun Soo David McInnis as Maj. Stanislav Petrov Jun Gook Hwan as Mo Byung Do Daniel Joey Albright as Officer Perry Elisabeth Garcia as Anna Roberto