Guest Stars Choi Jae Sung as Mao Liwarat Kim Gab Soo as Jung Hak Soo Jung Kyung Soon as Team Leader Oh Park Hyuk Kwon as Team Leader Sung Ji Roo as Byun Dong Suk Choi Ji Ho as Giraffe Jung Sung Mo as Seo Young Gil Seo Dong Won as Choi Il Do Park Hye Won as Go Myung Jae Lee Tae Sung as Kwon Sang Shik Lee Tae Ri as Goo Jung Hee Cha Soo Yun as Sya Oh Ming Park Hyo Joon as Ah Hwa Lee Ki Young as Kang Joon Ho Moon Jae Won as Min Ho Young Park Jung Woo as Director Moon Park Sun Woo as Ji Woo's Secretary Park Gun Tae as Young Soo Hyun