Pemeran Priest

Yeon Woo Jin

as O Su Min / Michael

Pemeran Utama

Jung Yoo Mi

as Ham Eun Ho

Pemeran Utama

Park Yong Woo

as Moon Ki Sun / Peter

Pemeran Utama

Son Jong Hak

as Goo Do Gyun [Detective / Member of 634 Regia]

Pemeran Pembantu

Oh Yeon Ah

as Shin Mi Yeon / Angela [Gallery Manager / Member of 634 Regia]

Pemeran Pembantu

Yu Bee

as Jung Yong Pil [Member of 634 Regia]

Pemeran Pembantu

Lee Dong Ha

as Jung Tae Hyun [Psychiatrist]

Pemeran Pembantu

Kang Kyung Hun

as Cha Seon Young [Eun Ho's friend]

Pemeran Pembantu

Jang Won Hyung

as Jang Won Suk [Doctor]

Pemeran Pembantu

Cha Min Ji

as Jang Kyung Ran [Detective]

Pemeran Pembantu

Lee Gun Myung

as Lee Gi Hong

Pemeran Pembantu

Lee Young Suk

as Bishop Kwak [Priest]

Pemeran Pembantu

Jang Hee Ryung

as Kim Yoo Ri [Doctor]

Pemeran Pembantu

Jang Jung Yeon

as Jo Hyung Rae

Pemeran Pembantu

Choi Yu Ri

as Cha Young Jin [Seon Young's daughter]

Pemeran Pembantu

Jo Yong Jin

as Oh Soo Min [Young]

Pemeran Pembantu

Yang Jo Ah

as Ms. Sung [Nurse]

Pemeran Pembantu

Park Min Su

as Kim Woo Joo [Patient] (Ep. 1-3, 14)

Bintang Tamu

Lee Na Ra

as [Woo Joo's mother] (Ep. 1-3, 14)

Bintang Tamu

Park Jung Won

as Song Mi So [Doctor] (Ep. 1-4, 13-16)

Bintang Tamu

Jeon Jin Ki

as Jung Hyung Seo / Ignatius [Priest] (Ep. 1, 9)

Bintang Tamu

Gam So Hyun

as Ham Eun Ho [Young] (Ep. 3)

Bintang Tamu

Bae Jung Hwa

as [Soo Min's mother] (Ep. 3)

Bintang Tamu

Kang Shin Chul

as [Soo Min's father] (Ep. 3, 9)

Bintang Tamu

Kim Ha Neul

as (Ep. 5)

Bintang Tamu

Yeon Je Wook

as Seo Jae Moon [Licensed Practical Nurse] (Ep. 5-7) | Father Antonio (Ep. 15-16)

Bintang Tamu

Jung Suk Yong

as [Professor] (Ep. 7)

Bintang Tamu

Moon Sook

as Lee Hae Min [Sister] (Ep. 8-12, 16)

Bintang Tamu

Bae Eun Woo

as [Nurse] (Ep. 13)

Bintang Tamu

Ji Il Joo

as Kim Joon Ho [Patient] (Ep. 13-14)

Bintang Tamu

Jang Se Ah

as [Nun] (Ep. 16)

Bintang Tamu

Han Hye Ji

as [Nurse] (Ep. 18)

Bintang Tamu

Kim Hong Kook

as Samael

Bintang Tamu

Kim Kwang Shik

as Sul Hyun [Doctor / Center Manager]

Bintang Tamu

Lee Yoo Jin

as [Nurse]

Bintang Tamu

Cha Yoo Joo

as [Patient]

Bintang Tamu

Kim Seol Jin

as [Evil spirit]

Bintang Tamu

Lee Moo Nyoung

as [Guardian]

Bintang Tamu

Lee Yang Hee

as [Hospital director]

Bintang Tamu

Heo Yoon

as [Emergency nurse]

Bintang Tamu

Yoon Jung Sub

Bintang Tamu

Kim Joo Hee

Bintang Tamu

Kim Min Kyung

Bintang Tamu

Kyung Sung Hwan

Bintang Tamu

Hong Joon Ki

Bintang Tamu

Lee Eun Saem

Bintang Tamu

Choi Na Moo

Bintang Tamu

Hyun Ri Won

as [Emergency nurse 3]

Bintang Tamu

Jang Won Chul

as Santa Claus

Bintang Tamu

Park Chan Woo

as Priest

Bintang Tamu

Kang Sung Wook

as [Security guard]

Bintang Tamu

Kim Jong Hyun

Sutradara

Moon Man Se

Screenwriter