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 Patti Murin Nina Shore Guest Star Peter Mark Kendall Joey Thomas Guest Star Paul Ben-Victor Mr. McGregor Guest Star Alex Hernandez Javier Guest Star Demetria McKinney Mrs. James Guest Star Eric C. Lynch Andre Guest Star Tonray Ho Nurse Leah Guest Star Sadieh Rifai Nurse Deb 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