Pemeran Dark Hole

Kim Ok Bin (김옥빈)

as Lee Hwa Sun

Pemeran Utama

Lee Jun Hyuk (이준혁)

as Yoo Tae Han

Pemeran Utama

Park Keun Rok

as Choi Seung Tae

Pemeran Pembantu

Oh Yu Jin

as Han Dong Rim [Student]

Pemeran Pembantu

Song Sang Eun

as Kim Seon Nyeo / "Sunnyeo" / "Madame Kim"

Pemeran Pembantu

Lee Ye Bit

as Jung Do Yoon

Pemeran Pembantu

Bae Jung Hwa

as Han Ji Soo [Doctor]

Pemeran Pembantu

Im Won Hee

as Park Sun Il [Police officer]

Pemeran Pembantu

Cho Ji An

as Cho Hyun Ho [Policeman]

Pemeran Pembantu

Kim Su Ol

as Yoon Ji Ae [Hyun Ho's wife]

Pemeran Pembantu

Yong Jin

as "Snake Eyes" [Loan shark]

Pemeran Pembantu

Kim Do Hoon (김도훈)

as Lee Jin Seok [Student]

Pemeran Pembantu

Lee Ha Eun

as Yoon Saet Byul [Nurse]

Pemeran Pembantu

Kim Byung Gi

as Choi Kyung Soo [Seung Tae's father / Muji High School's president]

Pemeran Pembantu

Heo Hyung Kyu

as Kang Sung Beom [Hwa Sun's husband]

Pemeran Pembantu

Jang Myung Gap

as Son Dong Goo [Teacher]

Pemeran Pembantu

Jang Sung Won

as Lee Young Tae [Hospital Security Officer]

Pemeran Pembantu

Park Gye Yoon

as Tae Ho [Student]

Pemeran Pembantu

Ga Soo Min

as Han Yeul

Pemeran Pembantu

Kim Han Jong

as Nam Young Shik [Tae Han's friend] (Ep. 1-2)

Bintang Tamu

Ahn Eun Jin (안은진)

as So Jeong Hwa [Detective] (Ep. 1-2)

Bintang Tamu

Min Joon Hyun

as Detective Cha [Metropolitan Investigation Unit] (Ep. 1)

Bintang Tamu

Won Chun Gyu

as Nam Jin Il [Infected man] (Ep. 1-2)

Bintang Tamu

Yoon Seul

as Kim Bo Eun [Jung Do Yoon's mother / Nurse] (Ep. 1-2)

Bintang Tamu

Oh Jin Seok

as [Shaman rite dummer] (Ep. 1)

Bintang Tamu

Yang Jin Seon

as [Shaman rite attendee] (Ep. 1)

Bintang Tamu

Jung Eui Soon

as [Shaman rite attendee] (Ep. 1)

Bintang Tamu

Kim Deok Ju

as [Shaman house woman] (Ep. 1)

Bintang Tamu

Lee Sang Hee

as [Jin Il's wife] (Ep. 1-2)

Bintang Tamu

Seo Young Sam

as Seo Yong Min [school janitor] (Ep. 2-6)

Bintang Tamu

Jung Hae Kyun

as Lim Joo Ho (Ep. 2-3)

Bintang Tamu

Yoon Jung Hoon

as Woo Sang [Student / Jin Seok's friend] (Ep. 2)

Bintang Tamu

Ho Sol Hee

as [Female student / Bully] (Ep. 2, 8)

Bintang Tamu

Chung Su Bin

as [Female student / Bully] (Ep. 2, 8)

Bintang Tamu

Jung Se Hyun

as [Female student / Bully] (Ep. 2, 8)

Bintang Tamu

Uhm Tae Ok

as [Line worker] (Ep. 2)

Bintang Tamu

Gi Hwan

as [Pathologist] (Ep. 2)

Bintang Tamu

Shin Jun Chul

as [Pathologist] (Ep. 2)

Bintang Tamu

Tak Jae Hoon

as Mr. Bae [infected man] (Ep. 2)

Bintang Tamu

Park Xi Yeon

as [High school student] (Ep. 3-4, 6)

Bintang Tamu

Jeon Yeo Jin

as Kim Ji Min [Lim Joo Ho's disciple] (Ep. 3)

Bintang Tamu

Im Ho Joon

as Nam Dong Geun [Hospital survivor] (Ep. 4-10)

Bintang Tamu

Kim Won Seok

as Mr. Kim [Hospital survivor] (Ep. 4-10)

Bintang Tamu

Lee Hyun Kyun

as Noh Jin Soo [wanted man] (Ep. 3-7)

Bintang Tamu

You Chae Eun

as [Nurse] (Ep. 3-5)

Bintang Tamu

Lee So Geum

as [Patient] (Ep. 4-5)

Bintang Tamu

Lee Chul Min

as Kang Duk Soo (Ep. 4, 6)

Bintang Tamu

Choi Min Geum

as [Chang Hee's grandmother] (Ep. 4, 6)

Bintang Tamu

Yoo Sang Hoon

as [Agent] (Ep. 5-6)

Bintang Tamu

Park Ji An

as Jang Myung Cheol [school survivor]

Bintang Tamu

Kim Kang Min

as Min Gyu (Ep. 11-12)

Bintang Tamu

Kim Yoon Ji

as An Ji Sook

Bintang Tamu

Jeon Young Mi

as [Bong Ju's mother]

Bintang Tamu

Lee Moo Nyoung

as [Hospital survivor]

Bintang Tamu

Kim Mi Ra

as [Middle-aged woman #2]

Bintang Tamu

Kang Seo Ha

as [Disorderly student #3]

Bintang Tamu

Yoon Jong Won

as [Hospital survivor]

Bintang Tamu

Chu Eun Kyung

as [Bong Sik's wife]

Bintang Tamu

Lee Ho Won

as Hyun Bong Shik

Bintang Tamu

No Eun Jeong

as [Hospital survivor]

Bintang Tamu

Han Yu Hee

as [Locked out patient] (Ep. 5)

Bintang Tamu

Park Ye Chan

as Chang Hee

Bintang Tamu

Gu Yun Hoi

as [Doctor] (Ep. 4)

Bintang Tamu

Bae An Na

as [Nurse] (Ep. 4)

Bintang Tamu

Choi Hwa Young

as [Employee] (Ep. 12)

Bintang Tamu

So Yun Ho

as [Jingan Supermart survivor] (Ep. 9)

Bintang Tamu

Lee Dong Wook

as [Hospital survivor]

Bintang Tamu

Choi Joon Kyu

as Yoo Kang Soo (Ep. 4, 10)

Bintang Tamu

Kim Won Joong

as [Hyun Mi's father] (Ep. 3)

Bintang Tamu

Jang Soon Mi

as [Hospital survivor]

Bintang Tamu

Sung Hyun Mi

as [Hyun Ji's mother] (Ep. 8)

Bintang Tamu

Jang Yong Bok

as [Doctor] (Ep. 9)

Bintang Tamu

Han Dong Won

as [Snake Eyes' co-worker] (Ep. 10)

Bintang Tamu

Ok Joo Ri

as [Convenience store owner] (Ep. 12)

Bintang Tamu

Kim Kwang Suk

as [Detective] (Ep. 1, 8)

Bintang Tamu

Park Yoo Hyun

Bintang Tamu

Jung Yeun

as [Baseball cap wearer]

Bintang Tamu

Na Se Na

as [Teacher]

Bintang Tamu

Kim Bong Joo

Sutradara

Jung Yi Do

Screenwriter

Lee Jae Sung

as [Hospital survivor]

Bit part