Matt Olmstead Creator Dick Wolf Creator Oliver Platt Dr. Daniel Charles Actor S. Epatha Merkerson Sharon Goodwin Actor Marlyne Barrett Maggie Lockwood Actor Steven Weber Dr. Dean Archer Actor Jessy Schram Dr. Hannah Asher Actor Luke Mitchell Dr. Mitch Ripley Actor Sarah Ramos Dr. Caitlin Lenox Actor Darren Barnet Dr. John Frost Actor Rachel DiPillo Dr. Sarah Reese Guest Star Brennan Brown Dr. Samuel "Sam" Abrams Guest Star Natalie Zea Nurse Jackie Nelson Guest Star John Earl Jelks Dr. Dennis Washington Guest Star Lilah Richcreek Estrada Dr. Nellie Cuevas Guest Star Devin Kawaoka Dr. Kai Tanaka-Reed Guest Star Jeremy Shouldis Dr. Marty Peterson Guest Star Marc Grapey Peter Kalmick Guest Star Nicolette Robinson Tara Goodwin Guest Star Cassady McClincy Zhang Ariel Sparkman Guest Star Tiff Abreu Cassidy Guest Star Lorena Diaz Nurse Doris Guest Star Marie Tredway Nurse Trini Guest Star Vena Howard Nurse Graysen Guest Star Vaughan Reilly Allie Wingate Guest Star Emily Anderson Grace Berlin Guest Star Holly Barrett Eva Copeland Guest Star Jonathan Charles Caleb Guest Star Shadee Vossoughi Patrol Officer Guest Star Clay Blanchette Risk Management Facilitator Guest Star Derek Haas Executive Producer Arthur W. Forney Executive Producer Michael Brandt Executive Producer Peter Jankowski Executive Producer Michael Pressman Executive Producer Ashley Bower Writer Eli Jarmel Writer Cherie Nowlan Director