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 Norma Kuhling Dr. Ava Bekker, Ava Bekker Actor, Guest Star Eddie Jemison Stanley Stohl Guest Star Lorena Diaz Nurse Doris Guest Star Corbin Bleu Tommy Guest Star Caitlin McGee Hannah Guest Star Morgan Weed Allison Guest Star Puja Mohindra Dr. Heather Singh Guest Star James Earl Jones II Dr. Lynn Ray Guest Star Courtney Jones Melissa Walker 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