Dana Delany Dr. Megan Hunt Actor Jeri Ryan Dr. Kate Murphey Actor Mark Valley Detective Tommy Sullivan Actor Geoffrey Arend Dr. Ethan Gross Actor Windell Middlebrooks Dr. Curtis Brumfield Actor Elyes Gabel Detective Adam Lucas Actor Mary Mouser Lacey Fleming Actor Tim DeKay Guest Star Margaret Easley Guest Star Jennifer Stone Guest Star Jayme Lynn Evans Guest Star Brian Hallisay Guest Star Joshua Leary Guest Star Christopher Murphey Executive Producer Matthew Gross Executive Producer Sunil Nayar Executive Producer Allen MacDonald Writer David Von Ancken Director