Guest Stars Kim Gun Woo as Cha Joon Soo Ok Ye Rin as Cha Joon Hee Kang Ki Young as Kim Sang Ryul Sung Joo as Ra Do Woo Kim Yeo Jin as Shim Eun Ha Jung Si Ah as Bong Sun Mi Seo Yi Sook as Kwon Young Shil Uhm Hyo Sup as Shim Woo Chul Cho Tae Kwan as K Choi Tae Hwan as Kim Ji Hoon Oh Han Kyul as Sang Ryul's Son Kim Dan Woo as Han Yoo Ra Jo Sun Mook as Yang Seung Hak Shin Soo Jung as Min Joon's Mother Park Ji Hyun as Clara Choi Kim Min Soo as Lee Chul Seung Park Gun Rak as Park Do Hoon