Pemeran Duel

Jung Jae Young

as Jang Deuk Cheon

Pemeran Utama

Kim Jung Eun

as Choi Jo Hye

Pemeran Utama

Yang Se Jong (양세종)

as Lee Sung Joon | Lee Sung Hoon | Dr. Lee Yong Sup

Pemeran Utama

Seo Eun Soo

as Ryoo Mi Rae

Pemeran Utama

Kim Ki Doo

as Kim Ik Hong [Journalist]

Pemeran Pembantu

Choi Woong

as Na Soo Ho [Jeongbuk Police Homicide detective]

Pemeran Pembantu

Jo Jae Ryong

as Jin Byung Joon [Prison medical director]

Pemeran Pembantu

Shim Wan Joon

as Yang Man Choon

Pemeran Pembantu

Lee Chul Min

as Park Yoo Shik

Pemeran Pembantu

Jo Soo Hyang

as Park Seo Jin

Pemeran Pembantu

Lee Hae Young

as Park Dong Sool

Pemeran Pembantu

Choi Kwang Je

as Head of Department Baek

Pemeran Pembantu

Kim Ji Yoo

as Ahn Hye Joo

Pemeran Pembantu

Kang Min Tae

Pemeran Pembantu

Park Tae San

Pemeran Pembantu

Jo Jae Wan

as Choi Joo Sik

Pemeran Pembantu

Kang Ji Hoo

as Park Seo Ryong

Pemeran Pembantu

Kim Nan Hee

as Kim Hye Jin

Pemeran Pembantu

Lim Il Gyu

as Cha Kil Ho

Pemeran Pembantu

Song Joon Hee

as Lee Sung Joon [Young] | Lee Sung Hoon [Young]

Bintang Tamu

Yoo Ha Bok

as [Member of board Han]

Bintang Tamu

Jung Dong Gyu

as Woo Byeong Cheon [Chief public prosecutor]

Bintang Tamu

Park Ji Il

as Park San Yeong

Bintang Tamu

Uhm Soo Jung

as Han Yoo Ra

Bintang Tamu

Gam So Hyun

Bintang Tamu

Kim Young Hee

Bintang Tamu

Cho Yi Hyun

Bintang Tamu

Lee Seung Jun

as [Duty doctor]

Bintang Tamu

Yoon Byung Hee

Bintang Tamu

Yoon Hee Won

Bintang Tamu

Kim Soo Hong

Bintang Tamu

Kim Dae Hyun

Bintang Tamu

Park Seong Kyun

Bintang Tamu

Oh Chang Kyung

Bintang Tamu

Yoon Jong Goo

Bintang Tamu

Baek In Kwon

Bintang Tamu

Kang Tae Shik

Bintang Tamu

Lee Soon Won

Bintang Tamu

Kwon Ban Suk

as [Researcher]

Bintang Tamu

Jin Geun Ho

as [Nurse]

Bintang Tamu

Heo Woong

Bintang Tamu

Kim Bum Suk

Bintang Tamu

Jung Yun Ha

as [Nurse]

Bintang Tamu

Lee Seo Joon

Bintang Tamu

Kim Si Eun

as Joo Ah

Bintang Tamu

Kim Jung Han

as [Homeless man]

Bintang Tamu

Eom Ki Yeop

Composer

Lee Jong Jae

Sutradara

Kim Yoon Joo

Screenwriter