Kim Yoon-seok
— Mu-ok
Lee Seung-gi
— Moon-seok
김성령
— Jung-hwa
Kang Hanna
— Ga-yeon
Park Soo-young
— Monk In-haeng
김시우
— Min-guk
윤채나
— Min-sun
Sim Hee-seop
— Sang-soo
Kil Hae-Yeon
— Nun
이순재
— Elder Monk
Lee Jae-yong
— Monk Jeok-jeong
Choi Moo-seong
— Director Han
황정민
— Dole
Seo Bum-june
— Gyeong-rae
김중기
— Chang-pyo
이송경
— Nurse
최정인
— Mu-ok's mother