- Lee Seung-gi
- Â Lee Jae Ha 20 episodes, 2012
- Ha Ji-Won
- Â Kim Hang Ah 20 episodes, 2012
- Yun Je-mun
- Â John Mayer / ... 20 episodes, 2012
- Lee Sung-min
- Â King Lee Jae-Gang 20 episodes, 2012
- Youn Yuh-jung
- Â Bang Young-Sun 20 episodes, 2012
- Lee Soon-jae
- Â Eun Gyu-Tae 20 episodes, 2012
- Jeon Gook-hwan
- Â Hyun Myung-Ho 20 episodes, 2012
- Jeong Man-sik
- Â Lee Kang-suk 20 episodes, 2012
- Lee Do-kyung
- Â Kim Nam-Il 20 episodes, 2012
- Kim Yun-tae
- Â Chief Secretary 20 episodes, 2012
- Samantha Daniel
- Â Bongbong 20 episodes, 2012
- Yum Dong-hun
- Â Park Ho-Cheol 20 episodes, 2012
- Kwon Hyun-sang
- Â Yeom Dong-Ha 20 episodes, 2012
- Kwon Choi
- Â Kwon Young-Bae 20 episodes, 2012
- Jo Jung-suk
- Â Eun Shi Kyung 19 episodes, 2012
- Jason-Patrick Taylor
- Â Colin 19 episodes, 2012
- Lee Yoon-ji
- Â Lee Jae Shin 15 episodes, 2012
- Choe Min
- Â Korean Drill Sergeant 4 episodes, 2012
- Troy Zitzelsberger
- Â American Soldier 2 episodes, 2012
- Park Ji-yeon
- Â Park Ji-yeon 1 episode, 2012
- Brad Curtin
- Â US Diplomat 1 episode, 2012
- Gun-Tae Park
- Â King Lee Jae-Gang (child) 1 episode, 2012
- Eric Sebastian Taylor
- Â Executives Son 1 episode, 2012
- Han-Byul Kang
- Â Lee Jae-Ha (child) 1 episode, 2012
- Vickie Eisenstein
- Â Party Guest 1 episode, 2012
