Shin Cheol-jin

as Kim Man-cheol

as School Custodian

as Principal Kim

as Grandfather

as Elderly Man in Rehab

as Shin Young-hoon

as Mr. Park

as Guy

as Mr. Yoon

as Mayor

as dean

as Manager Park

as Park

as Chinese teacher

as Investigator

as Security Guard

as Real Estate Mister

as Kim Young-pal (old)