Guest Stars Kim Won Hae as Kim Gye Chul Lee Yoo Joon as Jung Hun Gi Jang Hyun Sung as Kim Bum Joo Jung Hae Kyun as Ahn Chi Soo Kim Hyun Bin as Young Hae Young Chani as Park Sun Woo Kim Min Gyu as Hwang Ui Kyung Lee Moon Soo as Lee Jae Han's Father Im Hwa Young as Cha Soo Min Jung Han Bi as Oh Yoon Seo Kim Jung Young as Won Kyung's Aunt Kim Jong Goo as Detective Squad Chief Lee Dong Ha as Han Se Kyu Seo Joo Hee as Soo Hyun's Mother Jung Suk Yong as Oh Kyung Tae Yoo Ha Bok as Shin Dong Hoon Park Shi Eun as Oh Eun Ji Choi Woo Ri as Shin Yeo Jin