Matt Olmstead Creator, Executive Producer Dick Wolf Creator, Executive Producer Oliver Platt Dr. Daniel Charles Actor S. Epatha Merkerson Sharon Goodwin Actor Nick Gehlfuss Dr. Will Halstead Actor Brian Tee Dr. Ethan Choi Actor, Director Marlyne Barrett Maggie Lockwood Actor Dominic Rains Dr. Crockett Marcel Actor Brennan Brown Dr. Samuel "Sam" Abrams Guest Star T.V. Carpio Dr. Grace Song Guest Star Conor Perkins Dr. Zach Hudgins Guest Star Stan Shaw Dr. George Thomas Guest Star Walter Coppage Dr. Mark Cameron Guest Star Rasika Ranganathan Dr. Asha Mallick Guest Star Oren Gottfried Dr. Gottfried Guest Star Scarlett Wand Anna Charles Guest Star Luigi Sottile Sean Archer Guest Star Lorena Diaz Nurse Doris Guest Star Marie Tredway Nurse Trini Guest Star Renelle Nicole Nurse Trisha Guest Star Courtney Rioux Paramedic Courtney Guest Star Jodi Long Wu Da-Xia Guest Star John Wusah Wu Kuan-Yu Guest Star Bonnie Discepolo Cara Wallace Guest Star Dominic Burgess Michael Kennedy Guest Star Diane Frolov Executive Producer Andrew Schneider Executive Producer Derek Haas Executive Producer Arthur W. Forney Executive Producer Michael Brandt Executive Producer Peter Jankowski Executive Producer Michael Pressman Executive Producer Gabriel L. Feinberg Writer Lily Dahl Writer