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. Bekkar Guest Star Mekia Cox Robin Charles Guest Star Ato Essandoh Isidore Latham Guest Star Roland Buck III Noah Sexton Guest Star Beth Lacke Ms. Lake Guest Star Rachel Melvin Julia Dutra Guest Star John Lister Jerry Willis Guest Star David Eigenberg Christopher Herrmann Guest Star Lorena Diaz Nurse Doris Guest Star Michael Holding Scott Dutra Guest Star Alex Weisman Chout Guest Star Amanda Marcheschi Nurse Dina Guest Star Mia Park Nurse Beth 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