Guest Stars Kim Sung Kyun as Yang Jeong Ho Hyun Bong Shik as Choi San Kwak Ja Hyung as Ro Su Gwang Cha Woo Jin as An Yeong Ha Jung Man Shik as Tae Dong Su Park Gyu Young as Lee Seung Ju Jang Kyug Su as Hyun Ho Geun Hong Bi Ra as Byeon Ji Yun Lee Joo Young as Nam Na Ri Ahn So Yo as Yun Go Eun Kim Do Yeon as Nam Hyeok Su Joo Hae Eun as I Na's roommate Gu Hyun as Choi Jun Seo Ki Eun Yoo as Choi Jun U
