Han Joon-soo
Kim Byul
Han Woo-ram
Ki-seok
Subway Attendant (cameo)
Gwang-rok (uncredited)
Kim Byeol's Father (uncredited)
Kim Byeol's Mother (uncredited)
Ki-suk's Mother (uncredited)
Joon-soo's Mother (uncredited)
Joon-soo's Ex (uncredited)
Drunk Man (uncredited)
Ordinary Girl (uncredited)
Room Salon Customer (uncredited)
Police Officer (uncredited)
Woo-ram (voice) (uncredited)
Teacher (uncredited)
Room Salon Girl (uncredited)
Doctor (uncredited)