Ciężki dzień Online

Sun-kyun Lee - Det. Ko Gun-soo (as Seon-gyun Lee) , Cho Jin-woong - Park Chang-min (as Jin-woong Jo) , Man-sik Jeong - Det. Choi, Shin Jeong-geun - Det. Squad Chief, Suk-Tae Joo - Detective Nam, Dong-yeong Kim - Detective Do (as Dong-Young Kim) , Jung-eun Heo - Min-a, Park Bo-Gum - Police Officer Lee, Shin Dong-mi - Ko Gun-soo's younger sister, Jang In-sub - Policeman, Ha-Suk Jo - Lee Kwang-min, Kang-hyeon Kim - Young-chul, Seung-hun Kim - Chang-min (as Seung-hoon Kim) , Hee-Seok Lee - Cabinet inspection team member, Jae-won Lee - Jo Neung-hyun