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