Guest Stars Park Hyuk Kwon as Kim Joon Yang Hye Ji as Hong Soo Jin Gil Hae Yun as Jung Myeong Hee [Soo Ho's mother] Ji Gun Woo as Kang Tae Ho Cha Soo Yun as Yoon Hye Geum Sung Ji Roo as Lee Han Sang Kang Myung Joo as Kim Eun Min [Seon Yul's mother] Lee Ji Yun as Kim Joon's secretary Jin Jae Hee as Yoon Hee Jae Kim Woo Hyun as Park Yong Goo Jo Yeon Hee as Mok Ryeon Won So Yoon as Eun Soo Hyun (teen)