Ko So-young
Oh Se-jin
Kang Seong-jin
Detective Yang Na-sun
Jang Hee-jin
Yu-yeon
Park Ha-seon
Jung-hong
Kim Ha-eun
Woman who committed suicide
Kim Dong-wook
Shin Jung-soo
Yuko Fueki
Subway
K
Kim Kyu-min
Detective
Lee Young-hee
Elder
Ban Hye-ra
Hye-ra
Kang In-hyung
Student
Oh Jeong-won
Jung-hong's mother
Yook Mi-ra
Yu-yeon's mother
Lee Joo-suk
MD
Kim Ik-tae
Doctor