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. Sam Abrams Guest Star Abby Corrigan Dr. Vera Lovell Guest Star Brenda Strong Dr. Suzie Mankiewicz Guest Star Jeremy Shouldis Dr. Marty Peterson Guest Star Oren Gottfried Dr. Clifton Gottfried Guest Star Hannah Riley Anna Charles 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 Olivia Rouyre Summer Horton Guest Star Elden Henson Lucas Charles Guest Star Pilar Valdés Lucia Charles Guest Star Hunter McCoy Young Ripley Guest Star Nadia Brown Young Cece Guest Star Alexis Hyatt Young Susan Guest Star Deana Dunagan Margaret Charles Guest Star Alina Williams Young Robin Guest Star Isabella Moon Young Anna Guest Star Derek Haas Executive Producer Arthur W. Forney Executive Producer Michael Brandt Executive Producer Peter Jankowski Executive Producer Michael Pressman Executive Producer Oscar Rene Lozoya II Director Deanna Shumaker Writer