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 Alexandra Grey Denise Lockwood Guest Star Ato Essandoh Isidore Latham Guest Star Patti Murin Nina Shore Guest Star Marie Weiss Amanda Kendrick-Dobbs Guest Star Kanya Iwana Farah Guest Star Kara Killmer Sylvie Brett Guest Star Tosin Morohunfola Dr. Allen Vorspan 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