Guest Stars Lee Ji Ah as Kang Yoon Hee Seo Hyun Woo as Section Chief Song Kim Young Min as Do Joon Young Park Ho San as Park Sang Hoon Go Doo Shim as Byun Yo Soon Chae Dong Hyun as Assistant Manager Kim Kim Min Suk as Yeo Hyung Gyu Song Sae Byuk as Park Gi Hoon Jang Ki Yong as Lee Gwang Il Jung Jae Sung as Yoon Sang Tae Jun Gook Hwan as Executive Director Wang Ryu Abel as Jung Chae Ryung Park Soo Young as Lee Jae Chul Jung Hae Kyun as Park Dong Woon Oh Na Ra as Jung Hee Ahn Seung Kyun as Song Ki Bum Seo Sang Won as Sang Hoon's Friend Kwon Na Ra as Choi Yoo Ra Lee Do Hyun as Kwon Shik Shin Dam Soo as Jung Chang Mo Hong In as Jong Soo Park Hae Joon as Gyum Duk
