Main Characters Kim Do Jin 10 main appearances Go Soo Kil 10 main appearances Kim Se Jin 10 main appearances Jun Ji Won 10 main appearances Bong Sun Dong 10 main appearances Lee Myung Hyun 10 main appearances Lee Joo Young 10 main appearances
Recurring Guest Characters Jung Woo Jin 7 guest appearances Detective Kang Tae Shik 7 guest appearances Kim In Chul 5 guest appearances Yoon Il Joong 6 guest appearances Mr. Johnson 6 guest appearances Lee Su In 5 guest appearances Nurse Kim Mi Jung 4 guest appearances Anesthesia Doctor 1 guest appearances Joon Hee 1 guest appearances