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 Eamonn Walker Wallace Boden Guest Star David Eigenberg Christopher Herrmann Guest Star Kara Killmer Sylvie Brett Guest Star Mekia Cox Robin Charles Guest Star Colby Lewis Terry McNeal Guest Star Casey Tutton Nurse Monique Guest Star Carlos Rogelio Diaz Nurse Hank Guest Star Courtney Rioux Paramedic Courtney Guest Star Cesar Jaime Paramedic Cesar Guest Star Desmond Gray Paramedic Desmond Guest Star Naïma Hebrail Kidjo Paramedic Naïma 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 Nicole Rubio Director Eli Talbert Writer Paul R. Puri Writer