Guest Stars Lee Ji Ah as Kang Yoon Hee Go Doo Shim as Byun Yo Soon Kim Min Suk as Yeo Hyung Gyu Seo Hyun Woo as Section Chief Song Chae Dong Hyun as Assistant Manager Kim Kim Young Min as Do Joon Young Park Ho San as Park Sang Hoon Song Sae Byuk as Park Gi Hoon Jang Ki Yong as Lee Gwang Il Jung Jae Sung as Yoon Sang Tae Ryu Abel as Jung Chae Ryung Son Sook as Lee Bong Ae Park Soo Young as Lee Jae Chul Seo Sang Won as Sang Hoon's Friend Oh Na Ra as Jung Hee Jung Hae Kyun as Park Dong Woon Kwon Na Ra as Choi Yoo Ra Lee Do Hyun as Kwon Shik Shin Goo as CEO Jang Hong In as Jong Soo Kim Young Goo as Cafe Owner Lee Dong Yong as Recruitment Agency Manager