Song Hye-kyo

Sister Giunia

Jeon Yeo-bin

Sister Michela

Lee Jin-wook

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

한동희

Nurse

Park Jeong-hak

Dam-eon

전수지

Hee-joon's Mother

박지일

Bishop

유나

Young Michela

최유리

Young Michela's Roommate

Oh Man-seok

Professor Sin

Massimo Fierro

Rosicrucianism Priest

Adriana Maria Duello

Interpreter Nun

이경성

Patient

윤진성

Park Myeong-ja

Shin Joo-hyup

Marco