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