장기용
— Lee Jang-hyuk
Soo-bin Chae
— Jung Da-eun
정수정
— Han Bo-yeong
이우제
— Lee Jang-hyuk
Park Cheol-min
— Team Leader
Kim Mi-kyeong
— Jang-hyeok's Mother
황정민
— Nurse
Lee Kyung-young
— Security
Ahn Kil-kang
— Jang-hyeok's Father
Yu Seon
— CEO
Jo Han-chul
— Patient
정희태
— Director
Ko Kyu-phil
— Resident
Yoon Byung-he
— Patient
Jung Bo-min
— Matching Sweatshirt Couple
김윤우
— Team Member
최환이
— Friend 2
Choi Hyung
— [Incheon Juan General Hospital doctor]
동효희
— Employee