Elenco & Equipe de Signal
Lee Je-hoonPark Hae-young Jang Hyun-sungKim Bum-joo Kim Min-gueHwang Ui-kyung Kang Chan-heePark Sun-woo Son Hyun-jooJang Young-cheol Shin Yi-JoonKang Hye-seung (young) Sung Hyun-miJung Kyung-soon Jeong Seok-yongOh Gyung-tae Sung Ki-yoonHae-yeong's father Hong Seok-binLee Mi-sun's husband Nam Sang-ranHwang Min-joo Kim Jung-youngKim Won-kyeong's aunt Song You-hyunKang Se-young Seo Jung-joonSeo Hyung-joon Jeong Jong-yeolPolice sergeant Lee Do-yeopDetective Park Kim Myeong-joongPrison guard Lee Na-raShin Da-hye (Eps 7, 8) Kim Hak-soonPark Myung-hoon Hong Boo-hyangFarmer's wife Park Jeong-minSe-gyoo's chauffeur Kang Joo-heeShin Dong-hoon's wife Lee Yeong-eunKim Yoon-jung Kim Soo-jinKim Yoon-jung's mother Seo Ju-heeCha Soo-hyun's mother Yang Eun-yongSin Jeong-hye Jang Hyuk-jinCelebrity news journalist Park Ji-yeonCafe waitress Park Seong-hoonDetective Jung Lim Yong-soonWorkshop owner Lee Chae-kyungJin-woo's mother Song Kyung-hwaConvenience store owner Park Eun-youngStudent's mother Hwang Seung-eonHan Do-yeon Lee Jae-eunMarket stall owner Kang Chan-yangWoman going to work Oh Jin-haSehoon Hospital nurse Yang Seung-geolStreet cleaner Geum Dong-hyeonNews programme guest Jinnie ChoiProdutor Executivo 
