Guest Stars Kim Won Hae as Kim Gye Chul Lee Yoo Joon as Jung Hun Gi Jang Hyun Sung as Kim Bum Joo Jung Hae Kyun as Ahn Chi Soo Kim Hyun Bin as Young Hae Young Lee Do Yup as Kim Jung Jae Chani as Park Sun Woo Kim Min Gyu as Hwang Ui Kyung Im Hwa Young as Cha Soo Min Jung Han Bi as Oh Yoon Seo Son Hyun Joo as Jang Young Chul Seo Joo Hee as Soo Hyun's Mother Shin Yi Joon as Young Hae Seung Lee Sang Yub as Kim Jin Woo Seo Eun Ah as Yoo Seung Yun