Kim Ki-doo

as Grim Reaper

as Miami

as PE teacher

as Gomchi

as Goo-dol

as Hwang Geum-dong

as Pyung-chang's Classmate #3

as Kang Sang-gu

as Ahn Mu-in

as Man at the men's restroom

as Kim Gi-du

as Heungsinso CEO

as Baek Gong-ki

as Secretary Go

as Man-deok

as Joo Yong-joo

as Jin Kook

as Nam Sang-Bok

as Chang-gil

as Jeong-hoon

as Kim Ik-hong

as Tae-ho

as Hong Chul-Soo

as Jun-gil

as Kim Sang-Sun

as Park Joon-Yong

as Park Young-choon

as Han Deok-soo

as Gi-doo

as Dae-geun (Youth Association President)

as hotel manager

as Bong Soo

as Bang Deok

as Choi Maeng-Ja

as Duty officer

as Seo Daewon

as Cheon Man

as Self