Michael Brandt Creator, Executive Producer Derek Haas Creator, Executive Producer Oliver Platt Dr. Daniel Charles Actor S. Epatha Merkerson Sharon Goodwin Actor Nick Gehlfuss Dr. Will Halstead Actor Yaya DaCosta Nurse April Sexton Actor Colin Donnell Dr. Connor Rhodes Actor Brian Tee Dr. Ethan Choi Actor Torrey DeVitto Dr. Natalie Manning Actor Marlyne Barrett Maggie Lockwood Actor Norma Kuhling Dr. Ava Bekker Actor Heather Headley Gwen Garrett Guest Star D.W. Moffett Cornelius Rhodes Guest Star Nate Santana Dr. Jimmy Lanik Guest Star Cynthia Addai-Robinson Dr. Vicki Glass Guest Star Marc Grapey Peter Kalmick Guest Star Lorena Diaz Nurse Doris Guest Star Casey Tutton Nurse Monique Guest Star Desmond Gray Paramedic Desmond Guest Star Courtney Rioux Paramedic Courtney Guest Star Ian Harding Phillip Davis Guest Star Dick Wolf Executive Producer Andrew Schneider Executive Producer Diane Frolov Executive Producer Matt Olmstead Executive Producer Arthur W. Forney Executive Producer Peter Jankowski Executive Producer Charles Carroll Director Meridith Friedman Writer