Cho Hyun-chulCho Suk-bong Shin Seung-hoHwang Jang-soo Go Kyung-pyoPark Sung-woo Kim Dong-youngChoi Jun-mok Lee Jun-youngJeong Hyeon-min Kim Sung-kyunPark Beom-gu Hyun Bong-sikChun Yong-duk Joo Jong-hyukLee Hyo-sang Roh Jae-wonMin U's investigator Choi Hee-jin[Girl in pink jacket] Park Mi-hyeonJun-ho's Mother Kwon Hae-hyoJun-ho's Father Kwon Da-hamJeong Hyeong-beom Hwang Jeong-minRu-ri's mother Yang Mal-bokHyeong-beom's mother Park Jung-wooShin Woo-suk Oh Min-aeJun-mok's mother Han Woo-yeolTae Seong-gon Park Geun-hyeSelf (archive footage) Lee Sang-hunHyeon-min's father Park Yoon-heeSeo Chang-dae Song Jae-ryongHeo Tae-san Lee Ja-ryeongMiddle-aged Woman Lee Woo-jungNursing officer Hong Seok-binFactory Director Yeom Ji-youngCheck-in Counter Staff Han Jun-heeDirector / Writer / Executive Producer Byun Seung-minExecutive Producer Kim Myung-jinExecutive Producer Bae Jun-suProduction Design Yoo Ji-sunDirector Of Photography Choi Se-yeonCostume Design Lee Jin-youngMakeup & Hair Pee Dae-sungSpecial Effects Makeup Artist Seol Ha-woonSpecial Effects Makeup Artist Jeon Doo-kwanAssistant Director Cho Yong-jinAssistant Director Lee Eun-SongDigital Intermediate Lee Seung-yeopSound Supervisor Lee Yun-jaeProduction Sound Mixer PrimaryOriginal Music Composer Hong Jang-pyoSpecial Effects Supervisor Do Gwang-supSpecial Effects Supervisor 
