Don Lee
Ba-woo
Seohyun
Sharon
David Lee
Kim Gun
Kyung Soo-jin
Jung-won
Jung Zi-so
Eun-seo
Choi Gwang-il
Father Marco
Song Yo-sep
Middle-Aged Man
Park Ock-chool
Auntie
Han Gi-joong
Chief of Police
Lee Da-il
Mysterious Man
![Jo Hye-yeon]()
Jo Hye-yeon
Female Guest
Yoon Ji-won
Su-jin
![Jeon Se-won]()
Jeon Se-won
Female Patient
Nam Mi-jung
Landlady
Park Ki-seon
Landlord
Cha Woo-jin
CCTV Security Guy
Kim So-yang
CCTV Security Girl
Kim Do-gun
Delivery Driver
Seo Mun-ho
Male Nurse 1
![Lee Seon-ho]()
Lee Seon-ho
Male Nurse 2
Lee Sung-woo
Basement Demon 1
Lee Jae-suk
Basement Demon 2
Carla Fernanda Avila Escobedo
Hideout Informant
Lee Tae-young
Thumbs-Up Guy
Lee So-yoon
Orphanage Child 1
Kim Si-woo
Orphanage Child 2
![Kim Woo-bin]()
Kim Woo-bin
Orphanage Child 3
![Jeong Ha-bin]()
Jeong Ha-bin
Orphanage Child 4 / Additional Children Voices 4 (voice)
![Jang Woo-joon]()
Jang Woo-joon
Orphanage Child 5
Lim Yong-soon
Pastor
Na Gyeong-cheol
Male Announcer (voice)
![Lee Seung-min]()
Lee Seung-min
Female Announcer 1 (voice)
![Kim Seon-yeong]()
Kim Seon-yeong
Female Announcer 2 (voice)
![Lee Si-hyeong]()
Lee Si-hyeong
Hospital Security Guard
![Lee Won-haeng]()
Lee Won-haeng
Hospital Patient 1 / Hallway Worshipper 1
![Jeong Yoon-seong]()
Jeong Yoon-seong
Hospital Patient 2
Ryu Seong-cheol
Hospital Patient 3
Noh Jae-hoon
Hospital Patient 4
![Kim Ji-yeong]()
Kim Ji-yeong
Hospital Patient 5
![Kim San-seong]()
Kim San-seong
Hospital Patient 6
Choi Hong-rak
Hospital Patient 7
![Jeong Kyeong-sook]()
Jeong Kyeong-sook
Sister Angela
![Lee Jae-yi]()
Lee Jae-yi
Young Ba-woo
Kim Ye-gyeom
Young Joseph
![Lee Seol-i]()
Lee Seol-i
Young Sister Catalina
![Kim Seong-dong]()
Kim Seong-dong
Young Father Marco
Mitch Craig
Junkie 1
Lee Young-jun
Junkie 2
![Ahn Hyo-hoon]()
Ahn Hyo-hoon
Junkie 3
![Hong Ji-woo]()
Hong Ji-woo
Junkie 4
![Ri E]()
Ri E
Junkie 5
![Kim Gi-soo]()
Kim Gi-soo
Junkie 6
![Seon Woo]()
Seon Woo
Junkie 7
![Im Seo-ah]()
Im Seo-ah
Junkie 8
![Lee Seo-kyeong]()
Lee Seo-kyeong
Junkie 9
![Ha Yoo-ri]()
Ha Yoo-ri
Junkie 10
![Kim Jeong-gil]()
Kim Jeong-gil
Junkie 11
![Seon Seung-min]()
Seon Seung-min
Junkie 12
![Do Yoo-ri]()
Do Yoo-ri
Junkie 13
![Lee Jeong-woo]()
Lee Jeong-woo
Junkie 14
![Kim Ji-seon]()
Kim Ji-seon
Junkie 15
![Lee Ji-yeong]()
Lee Ji-yeong
Junkie 16
![Lee Dong-gyoo]()
Lee Dong-gyoo
Junkie 17
![Yook Ye-joo]()
Yook Ye-joo
Junkie 18
![Jo Jeong-bin]()
Jo Jeong-bin
Junkie 19
![Jo Yoo-jin]()
Jo Yoo-jin
Junkie 20
![Song Hee-joo]()
Song Hee-joo
Junkie 21
![Choi I-jae]()
Choi I-jae
Junkie 22
![Lee Da-ryeong]()
Lee Da-ryeong
Junkie 23
![Lee Hyeon-jin]()
Lee Hyeon-jin
Junkie 24
![Kwon Hye-won]()
Kwon Hye-won
Junkie 25
![Song Ji-hoon]()
Song Ji-hoon
Junkie 26
![Seo Woo-hee]()
Seo Woo-hee
Junkie 27
![Park Eun-cheol]()
Park Eun-cheol
Junkie 28
![Hwang Tae-hee]()
Hwang Tae-hee
Junkie 29
![Sin Ji-in]()
Sin Ji-in
Mentally Ill Person / Possessed Person
![Kim Soo-woo]()
Kim Soo-woo
Paramedic
![Lee Geon-goo]()
Lee Geon-goo
Hideout Demon 1
![Maeng Seung-yeong]()
Maeng Seung-yeong
Hideout Demon 2
Kwon Ji-hoon
Hideout Worshipper 1
![Kim Seok-jin]()
Kim Seok-jin
Hideout Worshipper 2
![Park Geon-hee]()
Park Geon-hee
Hideout Worshipper 3
![Jo Seung-yeon]()
Jo Seung-yeon
Hideout Worshipper 4
![Hwang Yeong-yoon]()
Hwang Yeong-yoon
Hideout Worshipper 5
![Yoon Gi-hyeon]()
Yoon Gi-hyeon
Hideout Worshipper 6
![Jeong Sin-yeong]()
Jeong Sin-yeong
Hideout Worshipper 7
![Park Joo-won]()
Park Joo-won
Pathologist's Assistant / Basement Worshipper 4
![Moon Kyeong-rin]()
Moon Kyeong-rin
Pathologist / Hallway Worshipper 3
![Kim Jin-woo]()
Kim Jin-woo
Hallway Worshipper 2
![Park Seung-jin]()
Park Seung-jin
Hallway Worshipper 4
![Kim Ye-seong]()
Kim Ye-seong
Hallway Worshipper 5 / Basement Worshipper 2
![Min Seon-gi]()
Min Seon-gi
Spying Worshipper
![Ji Ryoon]()
Ji Ryoon
Basement Worshipper 1
![Kim Tae-yoon]()
Kim Tae-yoon
Basement Worshipper 5
![Kim Woo-ram]()
Kim Woo-ram
Basement Worshipper 6
![Yoon Jin-yul]()
Yoon Jin-yul
Chapel Worshipper 1
![Hyeon Seung-hwan]()
Hyeon Seung-hwan
Chapel Worshipper 2
![Nandin-Erdene Boldbaatar]()
Nandin-Erdene Boldbaatar
Chapel Worshipper 3 / Basement Worshipper 3
![Park Hyeon-joon]()
Park Hyeon-joon
Chapel Worshipper 4
![Kim Do-hoon]()
Kim Do-hoon
Chapel Worshipper 5
![Jeong Ah-joon]()
Jeong Ah-joon
Chapel Worshipper 6
![Yoo Seong-gon]()
Yoo Seong-gon
Chapel Worshipper 7
![Jo Chang-geun]()
Jo Chang-geun
Chapel Worshipper 8
![Yang Nam-wook]()
Yang Nam-wook
Chapel Worshipper 9
![Park Jong-min]()
Park Jong-min
Chapel Worshipper 10
![Hwang Dae-hyeon]()
Hwang Dae-hyeon
Joseph
![Jo Hyeon-gyeom]()
Jo Hyeon-gyeom
Monstrous Entity (voice)
![Kang Seong-wook]()
Kang Seong-wook
Eun-seo's Demon Form (voice)
Choi Jin-ho
Moloch (voice)
![Kim Nam-hyeon]()
Kim Nam-hyeon
Additional Male Voices 1 (voice)
![Hwang Sang-jo]()
Hwang Sang-jo
Additional Male Voices 2 (voice)
![Wang Hee-jeong]()
Wang Hee-jeong
Additional Male Voices 3 (voice)
![Yeom Seung-cheol]()
Yeom Seung-cheol
Additional Male Voices 4 (voice)
![Ahn Jeong-ho]()
Ahn Jeong-ho
Additional Male Voices 5 (voice)
![Moon Eun-ji]()
Moon Eun-ji
Additional Female Voices 1 (voice)
![Park So-hyeon]()
Park So-hyeon
Additional Female Voices 2 (voice)
![Choi Jae-eun]()
Choi Jae-eun
Additional Female Voices 3 (voice)
![Lee Jae-bin]()
Lee Jae-bin
Additional Children Voices 1 (voice)
![Lee Joo-won]()
Lee Joo-won
Additional Children Voices 2 (voice)
![Song Jae-yoon]()
Song Jae-yoon
Additional Children Voices 3 (voice)
Ryu Seung-su
Detective Choi
Jeon Ik-ryoung
Sister Catalina
