Jeon Ji-hak

as University Professor

as President Hwang

as Commissioner of Korea Correctional Service

as [Puffer Fish Merchant]

as Cheol-min (철민)

as Jae-hyeok

as Chung-il (충일)

as Cheol-min (철민)

as Cheong-hyeon (청현)

as Yeong-seok (영석)

as [Min-hye's Father]

as Professor Kim

as Hee-hyeon (희현)

as Yoon Go-jong

as Kim Yong-cheol

as Subject 1

as Min-cheol (민철)

as Director Jang

as Tae-ho (태호)

as Kim Yong-cheol

as Hwang Moon-sik

as [Father]

as [Uncle]

as Min-cheol (민철)

as Seok-min (석민)