Guest Stars Kim Min Jae as Officer Han Jang So Yun as Kang Joo Hee Jung Sung Mo as Seo Chang Kwon Park Eun Suk as Nam Gun Woo Ahn Seo Hyun as Seo Yoo Na Lee Yul Eum as Shin Ga Young Choi Jae Woong as Kang Pil Sung Choi Won Hong as Ba Woo Jo Han Chul as Choi Hyung Kil Ryu Tae Ho as Head of a Police Station Kim Soo Hyun as Nam Soo Man Jung Ae Ri as Yoon Ji Sook's Mother