Guest Stars Lee Sun Bin as Jo Mi Joo Kim Joo Hun as Investigator Park Heo Jae Ho as Jang Hak Joo Jung Do Won as Investigator Kim Song Ok Sook as Noh Bang Shil Go Kyu Pil as Jung Ja Wang Kim Joo Ri as Choi Ji Yun Oh Dae Hwan as Ma Jin Suk Kim Byung Choon as Kang Noh Seung Lee Duk Hwa as Chairman Wang Lee Hak Joo as Ahn Chang Ho Jo Sun Joo as Sung Il's Wife Oh Man Suk as Park Duk Bae Kwon Tae Won as Noh Duk Gi