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 Gregory Alan Williams Bert Guest Star Roland Buck III Noah Guest Star Mekia Cox Robin Guest Star Brennan Brown Dr. Sam Abrams Guest Star Peter Mark Kendall Joey Thomas Guest Star Patti Murin Nina Shore Guest Star Marc Grapey Peter Kalmick Guest Star Joseph Morales Chad Rawls Guest Star Diane Howard Ivie Rawls Guest Star Garcelle Beauvais-Nilon Lyla Dempsey Guest Star Lorena Diaz Nurse Doris Guest Star Shiri Aljadeff Dr. Leah Bardovi 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