Dick Wolf Creator Matt Olmstead 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 Ashlei Sharpe Chestnut Dr. Naomi Howard Guest Star Brendan Hines Dr. Nicholas Hayes Guest Star John Earl Jelks Dr. Dennis Washington Guest Star Erin Anderson Elizabeth "Lizzy" Asher Guest Star Hope Lauren Lynne Murphy Guest Star Jessalyn Gilsig Ainsley Towne Guest Star Marc Grapey Peter Kalmick Guest Star Jodi Kingsley Madeline Gastern Guest Star Lorena Diaz Nurse Doris Guest Star Lynnette Li Nurse Nancy Guest Star Vena Howard Nurse Graysen Guest Star Courtney Rioux Paramedic Courtney Guest Star Matthew Isler Paramedic Matt Sutton Guest Star Orlagh Cassidy Board Member Miranda Lewis Guest Star Brittany Bradford Alexandra "Alex" Washington Guest Star Rachel Nicks Samantha Sutton Guest Star Tiffany Scott Gail Thatcher Guest Star Brendan Marshall-Rashid Roger Thatcher Guest Star Krystel V. McNeil Union Negotiator Joy Coleman Guest Star Banks Quinney Max Peterson Guest Star Genevieve Marie Alvarado Clarissa Thatcher Guest Star Hannah Kato Officer Opal Yamada Guest Star Derek Haas Executive Producer Arthur W. Forney Executive Producer Michael Brandt Executive Producer Peter Jankowski Executive Producer Michael Pressman Executive Producer Tess Malone Director Meridith Friedman Writer