Guest Stars Lee Dong Yong as Captain Go Dong Eob as Crime Scene Investigator Park Jung Pyo as Hong Eun Pyo Kim Jung Woo as Detective Hwang Bae Jin as Detective Won Mi Won as Min Hey Jin's mother Choi Hyeong Ju as Park Eun Yeol Kim Si Ha as Park Ha Yul Yoon Don Sun as Writer Kim Kwang Jin Song Ji Hyun as Arrowhead Teenager #2 Kim Kyu Baek as Joo Myung Hoon Lee So E as Cafe's Customer Park Ji Yun as Kyung Hun's Wife Phillip Kim as Arrowhead Teenager #1
