Guest Stars Lee Ji Ah as Kang Yoon Hee Go Doo Shim as Byun Yo Soon Park Ho San as Park Sang Hoon Kim Min Suk as Yeo Hyung Gyu Seo Hyun Woo as Himself (Section Chief Song) Song Sae Byuk as Park Gi Hoon Kim Young Min as Do Joon Young Chae Dong Hyun as Assistant Manager Kim 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 Son Sook as Lee Bong Ae Oh Na Ra as Jung Hee Seo Sang Won as Sang Hoon's Friend Kwon Na Ra as Choi Yoo Ra Lee Do Hyun as Kwon Shik Lee Young Suk as Chun Dae Hong In as Jong Soo Park Hae Joon as Gyum Duk Kim Kyu Ri as Young Ji An Lee Dong Yong as Recruitment Agency Manager