Jang Ki-yong

Lee Jang-hyuk

Chae Soo-bin

Jung Da-eun

Krystal Jung

Han Bo-yeong

Lee Woo-je

Lee Jang-hyuk

Park Cheol-min

Team Leader

Kim Mi-kyung

Jang-hyeok's Mother

Hwang Jeong-min

Nurse

Lee Kyung-young

Security

Ahn Kil-kang

Jang-hyeok's Father

Yu Seon

CEO

Cho Han-chul

Patient

Jung Hee-tae

Director