Guest Stars Park Jin Joo as Yoo Seung Jae Jang Gyu Ri as Sun Byul Kim Joo Hun as Lee Sang In Kang Ki Doong as Jo Jae Soo Jang Young Nam as Park Haeng Ja Kim Mi Kyung as Kang Soon Duk Kim Chang Wan as Oh Ji Wang Kim Ki Chun as Kan Pil Wong Lee Eol as Go Dae Hwan Seo Joon as Kwon Min Suk Choi Woo Sung as Oh Cha Yong Joo In Young as Yoo Sun Hae Jung Jae Kwang as Joo Jung Tae Kang Ji Eun as Park Ok Ran Kim Soo In as Go Moon Young (Child) Ji Hye Won as Lee Ah Reum Kwak Dong Yun as Kwon Gi Do Lee Young Sook as Kwon Man Soo's Wife Han Ki Joong as Kwon Man Soo Kang Woo Je as Kwon Man Soo's Assistent