Yang Yun-ho Director Kim Kang-woo Det. Jo Kyeong-yoon Actor Kim Gyu-ri Det.. Park Eunju Actor Lee Soo-kyung Cha Sujin Actor Park Won-sang Detective. Kim Actor Jeon Chang-geol Chief Actor Choi Changkyun Bae Jaeman Actor Choi Duk-moon Detective.. Lee Actor Oh Ji-yeoung Jeong Misuk Actor Park Jeongseon Maknaegim Actor Shin I-gyeong Music Han Jeung-ae Screenwriter Kim Won-beom Producer