Dick Wolf Creator, Executive Producer Matt Olmstead Creator, Executive Producer 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 Brennan Brown Dr. Samuel "Sam" Abrams Guest Star Ashlei Sharpe Chestnut Naomi Howard Guest Star Brendan Hines Dr. Nicholas Hayes Guest Star Logan Miller Kip Lenox Guest Star Jessalyn Gilsig Ainsley Towne Guest Star Lorena Diaz Nurse Doris Guest Star Marie Tredway Nurse Trini Guest Star Bill Cranley Orderly Bill Guest Star Courtney Rioux Paramedic Courtney Guest Star Cesar Jaime Paramedic Cesar Guest Star Deirdre Lovejoy Angela Tucker Guest Star Melanie McNulty Josephine Tucker Guest Star Wesley Holloway Liam Russell Guest Star Adelind Horan Jessica Russell Guest Star Adam Aalderks Henry Russell Guest Star JT Nagle Administrator Dylan Patrick Guest Star Cian Evans-Grayson Bartender Guest Star Derek Haas Executive Producer Arthur W. Forney Executive Producer Michael Brandt Executive Producer Peter Jankowski Executive Producer Michael Pressman Executive Producer Anthony Nardolillo Director Conor Patrick Hogan Writer Dylan Johnson Writer