Guest Stars Park Jin Joo as Oh Ji Yu Lee Jae Kyun as Yoon Jo Han Heo Joon Suk as Hong Ki Hyun Shin Jae Hwi as Jung Mo Dam / Jaden Kim Ji Hyun as Song Seo Kyung Han Hyun Jun as Ahn Tae Ho Kang Shin Il as Jung Ji Pyung Kim Mi Kyung as Na Ae Sook Lee Eun Jae as Song Seo Kyung (young) Na Hyun Jin as Art Class Student Baek Sung Chul as Cha Jin Woo (young)
