Guest Stars Go Bo Kyul as Yoon Sung Duk Kim Won Hae as Yoon Suk Ho Hwang Young Hee as Madam Kim Shin Jae Ha as Yoon Ki Sung Park Sun Im as Jung Jum Hyo Kim Myung Soo as Kim Sung Gye Lee Sang Yub as Kim Hong Ki Seo Dong Won as Woo Jin's Employee Jang Hyun Sung as Lee Yong Moon Kang You Suk as Ki Sung's Schoolmate Kim Kang Hyun as Lee Seo Koo Lee Chul Min as Government Officer
