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 Marlyne Barrett Maggie Lockwood Actor Dominic Rains Dr. Crockett Marcel Actor Devin Kawaoka Dr. Kai Tanaka-Reed Guest Star Henderson Wade Dr. Loren Johnson Guest Star John Earl Jelks Dr. Dennis Washington Guest Star Beth Lacke Dr. Margo Collins Guest Star Ashlei Sharpe Chestnut Naomi Howard Guest Star Gregory Alan Williams Bert Goodwin Guest Star Nicolette Robinson Tara Goodwin Guest Star Alet Taylor Liliana Wapniarski Guest Star Kristof Konrad Pawel Wapniarski Guest Star Luigi Sottile Sean Archer Guest Star Daniel Dorr Robert "Sully" Sullivan Guest Star Lorena Diaz Nurse Doris Guest Star Carlos Rogelio Diaz Nurse Hank Guest Star Marie Tredway Nurse Trini Guest Star Lynnette Li Nurse Nancy Guest Star Amanda Marcheschi Nurse Dina Guest Star Michael Vaughn Shaw X-Ray Tech Mike Guest Star Kathleen Czajkowski X-Ray Tech Kathleen Guest Star Courtney Rioux Paramedic Courtney Guest Star Sarah Brooks Paramedic Juliette Guest Star Elena Marisa Flores Officer Rosado Guest Star Joe Kim Dr. Cho Guest Star Jeff Kober Doug Green Guest Star Brad Beyer Tighe Willis Guest Star Tyler Ritter Derek Guest Star Antoine McKay Ed Cartwright Guest Star Toni Buena Reyna Guest Star Jamy Pierrevil Attendant Guest Star Savannah Youngblood Katherine Walker Guest Star Christopher Mowod Dustin Norris Guest Star Harriet Nzinga Plumpp Manager Guest Star Anthony Mannix Private Paramedic Guest Star Diane Frolov Executive Producer, Writer Andrew Schneider Executive Producer, Writer Derek Haas Executive Producer Arthur W. Forney Executive Producer Michael Brandt Executive Producer Peter Jankowski Executive Producer Michael Pressman Executive Producer Eli Talbert Executive Producer Anna Dokoza Director