Pemeran A Beautiful Mind

Jang Hyuk (장혁)

as Lee Young Oh

Pemeran Utama

Park So Dam (박소담)

as Gye Jin Sung

Pemeran Utama

Yoon Hyun Min

as Hyun Suk Joo

Pemeran Utama

Park Se Young (박세영)

as Kim Min Jae

Pemeran Pembantu

Huh Joon Ho

as Lee Gun Myung

Pemeran Pembantu

Kim Jong Soo

as Shin Dong Jae

Pemeran Pembantu

Oh Jung Se

as Kang Hyun Joon

Pemeran Pembantu

Lee Jae Ryong

as Chae Soon Ho

Pemeran Pembantu

Ryu Seung Soo

as Kim Myung Soo

Pemeran Pembantu

Min Sung Wook

as So Ji Yong

Pemeran Pembantu

Kim Do Hyun

as Kwon Duk Joong

Pemeran Pembantu

Lee Sung Wook

as Yoo Jang Bae

Pemeran Pembantu

Jo Jae Wan

as Oh Kyung Jin

Pemeran Pembantu

Jung Moon Sung

as Hwang Jung Hwan

Pemeran Pembantu

Sim Yi Young

as Kim Yoon Kyung

Pemeran Pembantu

Jeon Sung Woo

as Hong Kyung Soo

Pemeran Pembantu

Lee Shi Won

as Lee Shi Hyun

Pemeran Pembantu

Dong Ha

as Yang Sung Eun

Pemeran Pembantu

Yeon Je Wook

as Song Ki Ho

Pemeran Pembantu

Woo Jung Kook

as Lee Kwang Bok

Pemeran Pembantu

Ha Jae Sook

as Jang Moon Kyung

Pemeran Pembantu

Mo Ri Yoo

as Lee Hae Joo

Pemeran Pembantu

Jang Ki Yong (장기용)

as Nam Ho Young

Pemeran Pembantu

Jung Hee Tae

as Park Soo Bum

Pemeran Pembantu

Gong Hyung Jin

as Noh Sung Chan [Detective]

Pemeran Pembantu

Yang Hee Myung

as Detective Chun

Pemeran Pembantu

Jang Hyuk Jin

Pemeran Pembantu

Yoo Chea Myung

as Noh Seung Chan

Pemeran Pembantu

Baek Seung Hwan

as Lee Young Oh [Young]

Pemeran Pembantu

Park Eun Hye

as Shim Eun Ha

Pemeran Pembantu

Seo Joon Young

as Lee Sang Joon

Pemeran Pembantu

Jo Ah In

Pemeran Pembantu

Seo Ji Won

as [Doctor]

Pemeran Pembantu

Kim Hyun Sook

as Secretary Jeon

Pemeran Pembantu

Seo In Sung

as Kang Shin Joo

Pemeran Pembantu

Cho Byeong Kyu (조병규)

as Gye Jeong Soo [Jin Sung's brother]

Pemeran Pembantu

Lee Dong Kyu

as Kang Chul Min (Ep. 1)

Bintang Tamu

Jung Suk Yong

as [Glioblastoma patient] (Ep. 6)

Bintang Tamu

Baek Ji Won

as [Wife of glioblastoma patient] (Ep. 6)

Bintang Tamu

Kim Da Ye

as [Heart transplant patient] (Ep. 7)

Bintang Tamu

Kang Eui Shik

as [Doctor] (Ep. 7)

Bintang Tamu

Lee Ja Min

as [Nurse] (Ep. 9)

Bintang Tamu

Lee Do Hyun

as Yoo Sub (Ep. 10)

Bintang Tamu

Lee So Yun

as Kang Shin Joo [Patient] (Ep. 11)

Bintang Tamu

Lee Jae Woo

as Jo Yoon Ho [Patient] (Ep. 12-13)

Bintang Tamu

Kim Tae Hyung

Bintang Tamu

Lee Jae Wook

Bintang Tamu

Kim Dae Gon

Bintang Tamu

Hwang Tae Kwang

as Choi Sang-Hyuk

Bintang Tamu

Bang Dae Han

Bintang Tamu

Kim Ji A

as [Kindergartener]

Bintang Tamu

Bang Dae Han

as Dong Jun [Chul Min's son] (Ep. 1)

Bintang Tamu

Park Soon Chun

as [Jin Sung's mom] (Ep. 7)

Bintang Tamu

Jung Soon Won

as [Yang Sung Eun's childhood friend] (Ep. 11)

Bintang Tamu

Seo Yoon Ah

as Eun Joo [Jo Yoon Ho's wife] (Ep. 12)

Bintang Tamu

Nam Kyung Min

as [Patient's wife] (Ep. 13)

Bintang Tamu

Shin Dong Hoon

as [Presidential Candidate's Aide]

Bintang Tamu

Lee Mi Eun

as [Gun Myung's wife]

Bintang Tamu

Kim Gwang Su

Cinematography

Mo Wan Il

Sutradara

Lee Jae Hoon

Sutradara

Kim Tae Hee

Screenwriter