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 Marlyne Barrett Maggie Lockwood Actor Norma Kuhling Dr. Ava Bekker Actor Rachel DiPillo Dr. Sarah Reese Guest Star Heather Headley Gwen Garrett Guest Star Dick Wolf Executive Producer Andrew Schneider Executive Producer, Writer Diane Frolov Executive Producer, Writer Matt Olmstead Executive Producer Arthur W. Forney Executive Producer Peter Jankowski Executive Producer Michael Waxman Director