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 Actor Michael Gill Dr. Reese's father Guest Star Brennan Brown Dr. Sam Abrams Guest Star Bruce MacVittie Vic Thomas Guest Star Chloe Csengery Laura Guest Star Arden Cho Emily Guest Star Marc Grapey Peter Kalmick Guest Star Tyla Abercrumbie Luke's Mother Guest Star Cedric Mays Luke's Father Guest Star Amanda Marcheschi Nurse Dina Guest Star Sophie Thatcher Deb Guest Star Birgundi Baker Kiki 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 Lin Oeding Director