Guest Stars Lee Sun Bin as Jo Mi Joo Jo Woo Jin as Ahn Tae Wook Kim Joo Hun as Investigator Park Heo Jae Ho as Jang Hak Joo Jung Do Won as Investigator Kim Jung In Gi as Sa Jae Sung Song Ok Sook as Noh Bang Shil Go Kyu Pil as Jung Ja Wang Kim Joo Ri as Choi Ji Yun Kim Hong Fa as Bang Pil Kyu Im Hyun Sung as Bang Ho Suk Kim Ji Sung as Bang Min Ah Jo Jae Ryong as Shim Yong Jae Choi Chan Sook as Sung Il's Mother