Sung Joon
— Cho Dong-wook (segment "The Cliff")
Lee Soo-hyuk
— Park Sung-kyun (segment "The Cliff")
Park Seong-woong
— Mr. Park (segment "444")
Lee Se-young
— Se-young (segment "444")
고경표
— Go Byung-shin (segment "The Escape")
백진희
— Kang Ji-eun (segment "The Accident")
Kim Seul-gi
— Yoon Mi-ra (segment "The Accident")
정인선
— Gil Sun-joo (segment "The Accident")
Kim Ji-won
— Sa Tan-hee (segment "The Escape")
Kim Ye-won
— Byeong-shin's Girlfriend (segment "The Escape")
Im Won-hee
— Teacher (segment "The Escape")
류혜영
— Sa Tan-hee's Friend (segment "The Escape")
No Kang-min
— Young Boy (segment "The Cliff")
김기천
— Resident of Mountain Cabin (segment "The Accident")