Special Guest Stars Jung Yoon Suk as Choi Dong Joo Lee Chae Yun as Choi Ok Bin Choi Jeong Eun as Seo U Jung Min Suk as Kim Jin Suk Guest Stars Ha Min as Seo U's Mother Jung Min Gyu as Tae Suk Lee Seung No as Student Heo Sung Il as Student Kim Ha Neul as Student Kim Young Woo as Student Lee Man Soo as Student Han Jung Jae as Student Lee Na Young as Student Han Soo Jin as Student Jun Jae Sun as Student Bang Chi Yun as Student Kim Ji Na as Student Chang Soo Bin as Student Yoon Ha Young as Student Jang Gi Won as Patient Han So Hyun as Patient Kim Shi Eun as Seo Woo's Friend Kim Ye Song as Student Hwang Ji Yun as Student Lee Joo Eun as Student Park In Bong as Assistant in Chun Gi's Temple Lee Soo Ja as Assistant in Chun Gi's Temple Park Young Gil as Assistant in Chun Gi's Temple Park In Hwan as Patient Park In Hwan as Policeman 2 Han Seung Wu as Policeman 1 Lee Min Sung as Teacher Lee Song Lee as Nurse Hwang Suk Ha as Dong Joo's Father Kim Jung Hwa as Dead Body Kim Jung Hwa as Tae Suk's Sister Jo Ha Suk as Seo Woo's Father Lee Tae Young as Patient
