Unmasked

Heo Dong-won as Lee Sang-mok 12 12 episodes Choi Dong-gu as Choi Je-il 12 12 episodes Park Seo-yeon as Baek Song-i 12 12 episodes Kim So-hee as Park Jin-mi 12 12 episodes Ju Jin-mo as Baek Dal-ha 12 12 episodes Park Ji-hong as Director Park 12 12 episodes Shin Jung-keun as Koo Hyeong-tae 12 12 episodes Park Soo-young as Son Hui-won 12 12 episodes Heo Joon-seok as Hwang Jin-woo 12 12 episodes Oh Dae-hwan as Jang Hak-ui 12 12 episodes Lee Kang-wook as Yeo Yun-cheol 12 12 episodes Park Yu-mil as Planning PD 12 12 episodes Sung Ji-ru as Detective Yu 12 12 episodes Lee Su-min as Park Min-hu 12 12 episodes Choi Jeong-in as Yang Sa-rang 12 12 episodes Ryu Kyeong-hwan as Mr Hwang 12 12 episodes Choo Ja-hyun as Cho Hae-won 12 12 episodes Han Ji Seok as Cha Seo-wook 12 12 episodes Ahn Suk-hwan as Cha Seong-wook Dad 12 12 episodes Choi Dae-hoon as Choi Jin-man 12 12 episodes Nam Kyung-eup as Cho Tae-su 12 12 episodes Lee Dae-yeon as Ma Seong-chun 12 12 episodes Lee Su-mi as Yeom Mi-jin 12 12 episodes Kim Min-seo as Oh So-ryeong (Teen) 12 12 episodes Cha Si-won as Convenience Store Owner 12 12 episodes Kim Si-woo as Han-do Child 12 12 episodes Jung Seung-kil as Han-do Dad 12 12 episodes Kim Keum-soon as Han-do Mom 12 12 episodes Han Dong-won as Lee Sang Mok 12 12 episodes Kim Jo-yeon as PD 1 1 episode Lee Eun as Elevator Woman 1 1 episode Park Jeong-min as Programming Director 1 1 episode Yoo Yong as Wi Jong-u 2 2 episodes Kim Geon-ho as Yongpyeong Detective 1 1 episode Kim Yeon-woo as Police Office 1 1 episode Park Se-jun as Police Office 1 1 episode Kim Bum-suk as Detective 1 1 episode Kim Nak-kyun as Kim Gye-nam 2 2 episodes Kang Gu-ha as Detective 1 1 episode Park Ji-han as Detective 1 1 episode Kim Seong-yong as Graphologist 1 1 episode Na Ho-won as Taxi Driver 1 1 episode Rie Akiba as Haru 2 2 episodes Kim Do-shin as Jong-sik 1 1 episode Kim Dae-gon as Han-jeong 2 2 episodes Son Kang-gook as Kim Yong-gyun 2 2 episodes Kim Won-suk as Forensics Expert 1 1 episode Kim Sung-ho as Choi Jin-man Aide 2 2 episodes Song Won-su as Senior Citizen 1 1 episode Lee Da-yeong as Park Sun-jeong 1 1 episode Jeong A-mi as Pastor Kim Wife 1 1 episode Lee Seung-hun as Pastor Kim 1 1 episode Hong Boo-hyang as Kim Jeong-nam Mom 1 1 episode Moon Woo-jin as Son Jun-yeong 2 2 episodes Yeo Moo-yeong as Yoon Nam-gi 2 2 episodes Jung Chae-won as Jo Min-geun Mom 2 2 episodes Lee Eun-ju as Son Jun-yeong Mom 1 1 episode Bae Bo-ram as Nurse 1 1 episode Park Sin-un as Choi Young-jun 2 2 episodes Lee Dong-soo as Lee Hyung-suk 2 2 episodes Lee Tae-kyung as Nam Ga-yeon 2 2 episodes Lee Hae-Woo as Choi Ho-seong 2 2 episodes Jung Hae-kyun as Choi-geon 2 2 episodes Lee Si-hoo as Lee Mu-o 2 2 episodes Kwon Eun-soo as Kim Bo-mi 2 2 episodes Yoon Byul-ha as Hong Je-in 2 2 episodes Yoo Ji-hyuk as Dr. An Myeong-seok 2 2 episodes