Characters played by Yoon Sang-Hyun
Ha Moo-yeom
Characters played by Min-Jung Kim
Maria Oh
Characters played by Dong-il Sung
Yang Chul-gon
Characters played by Joon Lee
Ryoo Tae-oh
Characters played by Kim Ji-Won
Ma Ji-wool
Characters played by Sung-jae Choi
Detective
Characters played by Soo-Hyun Choo
Oh Young Ae
Characters played by In-gi Jeong
Cha Do-Hyeok
Characters played by Ji-Hwan Jo
Lee Hyung-nyeon
Characters played by Nam-kil Kang
Han Sang-hoon
Characters played by Yoon Kyun-Sang
Detective
Characters played by Min Sung-wuk
Nam Ki Ri
Characters played by Jang Gwang
Monk Jin-jo
Characters played by Won-joong Jung
Park Joon-goo
Characters played by Jae-jin Baek
Psychiatric recluse
Characters played by Hee-woong Jang
Seo Ji-hoon
Characters played by Geun Jung
Park Ho-suk
Characters played by Hee-soo Jang
Kim Young-mi
Characters played by Joo-hee Seo
Ji Hwa Ja
Characters played by Seung-yeon Jo
Kwon Oh-shin
Characters played by Yae-min Jung
Ha Moo-yeom (young)
Characters played by Min-Sang Kim
Choi Tae-shik
Characters played by Hyun Woo
Cha Do-Hyeok (young)
Characters played by Byul Eun Gil
Ha Il Shik
Characters played by In-Young Hong
Hong Sung-hee
Characters played by Min-hee Jo
Ryoo Tae-oh's mother
Characters played by Chan-Bi Jung
Kim Jae Hee (young)
Characters played by Min Choi
Peter Park
Characters played by Sa Hee
Jung Mi-ra
Characters played by Young-eun Lee
Lee Soon-shim
Characters played by Seo-yeon Park
Choi Mi-ja
Characters played by Yoo-Min Jung
Lee Jung Sook
Characters played by Kim Se-in
Victim
Characters played by Go-Eun Lee
Yang Sun-yoo (child)
Characters played by Eun-ho Yoo
Yang Sun-joo
Characters played by Chan-Young Yoon
Ryoo Tae-oh (young)
Characters played by Kim Ga-eun
Maria Oh's patient
Characters played by Wang-Byul Joo
Jo Seung-uk (Mr. Jo's son)
Characters played by Kim Joon-Goo
Knife attacker
Characters played by Yoon-sun Jung
Kim Yeoh-jung
Characters played by Dong-jin Lee
Ryoo Tae-oh's Psychiatrist evaluator
Characters played by Seung-ho Lee
Kim Shin-yong
Characters played by Soo-ryun Lee
Victim
Characters played by Dong-bin Park
Bae Sang-ki
Characters played by Jung-Gook Woo
Mr. Jo (School janitor)