as Self
as Professor Song
as Han Yun-sik
as R
as Chief Nam Kyeong-dae
as Shin Jae-yeol
as Young-soo
as President Yoon
as Hwan
as Moonsoo
as Kim Ki-young
as Bae Tae-gon
as Moon Dok-bae / Moon Chae-ku
as Wan-ho
