Dana Delany Dr. Megan Hunt Actor Jeri Ryan Dr. Kate Murphey Actor John Carroll Lynch Detective Bud Morris Actor Nicholas Bishop Peter Dunlop Actor Sonja Sohn Detective Samantha Baker Actor Geoffrey Arend Dr. Ethan Gross Actor Windell Middlebrooks Dr. Curtis Brumfield Actor Mary Mouser Lacey Fleming Actor Peter Stormare Guest Star James Urbaniak Guest Star Deirdre Lovejoy Guest Star Devon Graye Guest Star Lindsey Shaw Guest Star Christopher Murphey Executive Producer Matthew Gross Executive Producer Sunil Nayar Executive Producer Allen MacDonald Writer Caren Rubenstone Writer David Solomon Director