Kim Il-woo

as Quintuplets

as Head of Student Affairs

as Jung

as Lee Jang

as Senior Inspector

as Senior Inspector

as Leader

as Jeong Chun-gyo

as Taxi company Owner

as Senior Inspector

as Detective Kang

as President

as Palbong

as Pup owner

as Mr. Lee

as Gangster

as Mr. Jung

as Fussy

as Hope House Owner

as Dispatcher

as Manager Kang