Doctor Stranger

Lee Jong-Suk

Park Hoon

Se-Yeon Jin

Song Jae-Hee

Se-Yeon Jin

Han Seung-Hee

Park Hae-joon

Cha Jin-Soo

Ho-jin Chun

Prime Minister Jang Seok-joo

In-gi Jeong

Kim Tae-sool

Kim Ji-Eun

Oh Joon-gyoo's assistant

Park Hae-Jin

Han Jae-joon

Kang So-ra

Oh Soo-Hyun

Jeon Gook-hwan

Oh Joon-gyu

Lee Jae-won

Kim Chi-Gyu

Kim Sang-Ho

Yang Jeong-han

Choi Jung-Woo

Moon Hyung-wook

Yong-geon Kim

President Hang Chan-seong

Bo-ra Yoon

Lee Chang-yi

Eun-seon Han

Eun Min-se

Su-Jeong Eom

Min Soo-ji

David Will No

Dr. Yan

Sang-Jung Kim

Park Cheol (Park Hoon's father)