Mi-Ok
Chang-sik (as Dong-kun Yang)
Korean History Teacher
Chang-Sik's Father
Department Head
Interviewer 1
young Chang-sik
Homeroom Teacher (as Kang-gook Son)
Detective 1
young Joon-Seok
Room woman 2 (as Min-Yeong Kim)
Hyun-Joo
Joon-Seok (as Sang-wook Joo)
Doo-Joon (young)
Glamour Woman
Ji-Hee (as Tae-im Lee)
Doo-joon (as Tae-seong Jang)
Room woman 1 (as Yu-mi Jeong)