Guest Stars Oh Na Ra as Nurse, ICU Kim Mi Kyung as Head Nurse Kang Soo Min Song Kyung Chul as Doo Chul Moon Ji In as Nurse Song Jung Kyung Ho as Doo Chul's Bodyguard Jo Hwi as Detective Kim Park Pal Young as Hospital Director Byung Yoo Seung Mok as Detective Lee Yoo Joon Hong as Resident 1 Jo Bok Rae as Park Tae Yong Im Hwa Young as Resident 2 Kim Dong Suk as Kim Do Young Bae Hae Sun as Nurse Hwang Cha Soon Bae as Chief Surgeon Shin Ahn Se Ha as Hyun Man Shik Kim Na Woon as Tae Hyun's Mother Lee Kyu Sub as Doo Chul's Subordinate Park Young Soo as Head of the Administrative Office