Dick Wolf Creator, Executive Producer Matt Olmstead Creator, Executive Producer Oliver Platt Dr. Daniel Charles Actor S. Epatha Merkerson Sharon Goodwin 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 Merrin Dungey Dr. Jennifer Kingston Guest Star Mark Linn-Baker Dr. Howie Mankiewicz Guest Star Jeremy Shouldis Dr. Marty Peterson Guest Star Hope Lauren Lynne Murphy Guest Star Lorena Diaz Nurse Doris Guest Star Marie Tredway Nurse Trini Guest Star Lynnette Li Nurse Nancy Guest Star Kim Quindlen Nurse Kacy Guest Star Sarah Brooks Paramedic Juliette Guest Star Lauren Powell Paramedic Evie Guest Star Brenda Strong Dr. Suzie Mankiewicz Guest Star Elizabeth Ramos Lyra Moreno Guest Star Law Tarello Paul Tremblay Guest Star Adam Schulmerich Dr. Walter Berman Guest Star Jasmine Chang Security Guard Guest Star Derek Haas Executive Producer Arthur W. Forney Executive Producer Michael Brandt Executive Producer Peter Jankowski Executive Producer Michael Pressman Executive Producer Elisabeth Röhm Director Zoe Cheng Writer