Jang Ki-yong as Lee Jang-hyuk

Chae Soo-bin as Jung Da-eun

Krystal Jung as Han Bo-yeong

Lee Woo-je as Lee Jang-hyuk

Park Cheol-min as Team Leader

Kim Mi-kyeong as Jang-hyeok's Mother

Hwang Jeong-min as Nurse

Lee Kyung-young as Security

Ahn Kil-kang as Jang-hyeok's Father

Yu Seon as CEO

Jo Han-chul as Patient

Jung Hee-tae as Director

Ko Kyu-phil as Resident

Yoon Byung-hee as Patient

Jung Bo-min as Matching Sweatshirt Couple

Kim Yoon-woo as Team Member

Choi Hwan-yi as Jang Hyeok's Friend