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 Rachel DiPillo Dr. Sarah Reese Actor Marlyne Barrett Maggie Lockwood Actor Jeff Hephner Jeff Clarke Guest Star Ato Essandoh Isidore Latham Guest Star Eddie Jemison Stanley Stohl Guest Star Nora Dunn Dr. Richardson Guest Star Rosie Benton Laura Green Guest Star Caroline Heffernan Ariel Green Guest Star Lorena Diaz Nurse Doris Guest Star Jeremy Shouldis Dr. Marty Peterson Guest Star Amanda Marcheschi Nurse Dina Guest Star Mia Park Nurse Beth Guest Star Tonray Ho Nurse Leah Guest Star Dick Wolf Executive Producer Andrew Schneider Executive Producer Diane Frolov Executive Producer Matt Olmstead Executive Producer Danielle Gelber Executive Producer Arthur W. Forney Executive Producer Peter Jankowski Executive Producer Joe Chappelle Executive Producer