Dark Nuns

Song Hye-kyo

Sister Giunia

Jeon Yeo-been

Sister Michela

Lee Jin-uk

Father Paolo

Moon Woo-jin

Choi Hee-joon

Huh Joon-ho

Father Andreas

Kim Guk-hee

Hyo-won

Shin Jae-whi

Ae-dong

Gang Dong-won

Choi Joon-ho

Han Dong-hee

Nurse

Park Jeong-hak

Dam-eon

Jeon Su-ji

Hee-joon's Mother

Park Ji-il

Bishop

Yuna

Young Michela

Choi Yu-ri

Young Michela's Roommate

Oh Man-seok

Professor Sin