Dr. Miranda Bailey

Dr. Bailey was looking through some paperwork with the receptionist.

Originally introduced as a resident in general surgery at Seattle Grace Hospital, Bailey rises through the ranks to become an attending physician and is eventually appointed Chief of Surgery. Her relationship with the series' five original surgical interns — Meredith Grey, Cristina Yang, Izzie Stevens, Alex Karev and George O'Malley — is a central focus in the early seasons, highlighting her role as a tough but caring mentor.