Pemeran Blood

Ahn Jae Hyun

as Park Ji Sang

Pemeran Utama

Gu Hye Seon

as Yoo Ri Ta

Pemeran Utama

Ji Jin Hee (지진희)

as Lee Jae Uk

Pemeran Utama

Jung Hae In (정해인)

as Ju Hyeon U [Ji Sang's friend]

Pemeran Pembantu

Kim Gab Soo

as Yoo Seok Ju

Pemeran Pembantu

Jin Kyung

as Choi Gyeong In [Hospital vice president]

Pemeran Pembantu

Son Sook

as Sylvia An [Nun]

Pemeran Pembantu

Park Young Rin

as Seo Hye Ri [Taemin Pharmaceutical Headquarters director]

Pemeran Pembantu

Kwon Hyun Sang

as Nam Cheol Hun [Vampire / Jae Uk's henchman]

Pemeran Pembantu

Lee Ji Hoon (이지훈)

as "J" [Vampire / Jae Uk's henchman]

Pemeran Pembantu

Ji Chan

as Do Seong [Hot-blooded vampire]

Pemeran Pembantu

Son Soo Hyun

as Min Ga Yeon [Hospital 1st year resident]

Pemeran Pembantu

Kang Tae Sung

as Ju In Ho [Vampire / Hye Ri's successor]

Pemeran Pembantu

Kim Yoo Suk

as Jung Ji Tae [Hospital Hematoma division manager]

Pemeran Pembantu

Jo Jae Yun (조재윤)

as Woo Il Nam [Chief of surgery]

Pemeran Pembantu

Jung Hye Sung

as Choi Su Eun [Ri Ta's friend / Hospital fellow]

Pemeran Pembantu

Jung Suk Yong

as Lee Ho Yong [Surgeon]

Pemeran Pembantu

Gong Jung Hwan

as Gerrard Kim [Surgeon]

Pemeran Pembantu

Park Joon Myun

as Lee Yeong Ju [Head nurse]

Pemeran Pembantu

Ki Se Hyung

as [Man in black] (Ep. 20)

Bintang Tamu

Jeon Heon Tae

as Kong Ji Bok

Bintang Tamu

Kang Dae Hyun

as Son Yeong Gi

Bintang Tamu

Yoon In Jo

as Reporter Seo

Bintang Tamu

Park Chang Woo

as Choi Han Bin

Bintang Tamu

Park Jun Mok

as Kim Sang Gyu

Bintang Tamu

Lee Seung Hee

as Lee Seung Hui

Bintang Tamu

Kang Eui Shik

as Lee Seong Gyun

Bintang Tamu

Nam Myeong Ryeol

as Jung Han Su

Bintang Tamu

Jung Chan Bi

as Yoo Ri Ta [Young]

Bintang Tamu

Kim Hye Won

as Kim Seok [Nurse]

Bintang Tamu

Baek Seung Hwan

as Park Ji Sang [Young]

Bintang Tamu

Choi Yoon Joon

as Nam Dong Pal [Alcoholic patient]

Bintang Tamu

Yoo Eun Mi

as Choi Su Yeon [U Sik's daughter]

Bintang Tamu

Kim Ji Hoon

as Kang Jeong Min [Hospital security guard]

Bintang Tamu

Kim Tae Young

as Han Man Yeong [Seok Ju's doctor]

Bintang Tamu

Hong Hwa Ri

as Lee Na Jeong [Liver cancer patient]

Bintang Tamu

Mi Ram

as Jang Yu Jin [Intellectually disabled patient]

Bintang Tamu

Park Joo Mi

as Han Sun Yeong [Stanford Medical School researcher / Ji Sang's mother]

Bintang Tamu

Jeon Li Han

as Kim Byeong Su [Hospital 3rd year resident]

Bintang Tamu

Jung Hee Tae

as Choi U Sik [End-stage pancreatic cancer patient]

Bintang Tamu

Ryu Soo Young

as Park Hyeon Seo [Stanford Medical School researcher / Ji Sang's father]

Bintang Tamu

Kim Bo Kyung

as [U Sik's wife]

Bintang Tamu

Lee Gyu Sub

as [Mobster]

Bintang Tamu

Hwang In Jun

Bintang Tamu

Yoo Jung Ho

Bintang Tamu

Kim Young Moo

Bintang Tamu

Lee Dong Hoon

Bintang Tamu

Kim Sung Geun

Chief Producer

Ki Min Su

Sutradara

Lee Jae Hoon

Sutradara

Lee Pil Ho

Music Editor

Park Jae Bum

Screenwriter

Ahn Ji Hwan

as Luuvy

Voice Actor