Guest Stars Choi Byung Mo as Secretary Min Oh Na Ra as Nurse, ICU Kim Mi Kyung as Head Nurse Kang Soo Min Moon Ji In as Nurse Song Jung Dong Kyu as Representative Choi Chul Min Yoo Seung Mok as Detective Lee Kim Ik Tae as Representative Han Teo Sub Park Hyun Sook as Housekeeper Jo Hwi as Detective Kim Park Pal Young as Hospital Director Byung Kwon Tae Won as Chief of Security Yoo Joon Hong as Resident 1 Jo Bok Rae as Park Tae Yong Im Hwa Young as Resident 2 Han Min as Nurse Kim Dong Suk as Kim Do Young Cha Soon Bae as Chief Surgeon Shin Jun Gook Hwan as Chairman Han Chang Joo Min Jin Woong as Lee Sang Chul Choi Na Moo as Nurse Jo Kim Yong Woon as Scarface Kim Kwang In as Lee Seung Hoon Jung Suk Yong as Surgeon Nam Myung Ryul as Chae Young's Father Kim Ho Chang as Yeo Jin's Subordinate