as Chi Fa
as Noh Do-sun
as Hyungjun
as Hwang Yun-heon
as Mr. Jo
as Dr. Lee
as X-7
as Kim Cheol-su
as Som-doll
as Yong-mun
as Yun Ki-jun
as Eo-jin
as Ki-taek (Jun-ho's father)
as Do-sam
as Ji-hoon
as Park
as Hyung-sik
as Senior stationmaster
as Dr. Park
as Dong-su
as Kim Dong-sik
as Dong-sik
as Shin Sung-min
as Wang-suk
as Detective Koh
as CEO
as King Go-jong
as Dr. Yoon
