Guest Stars Im Hyun Sung as Jin Duk Hoo Kim Tae Hoon as Min Tae In Im Jong Yoon as Han Sang Joon Choi Jung Woo as Chairman Lee Kang Sung Jin as Nam In Ho Oh Dae Hwan as Lee Moo Sung Seo Yoo Jung as Um In Kyung Jung Sung Il as Um In Kyung's Assistant