Dana Delany Dr. Megan Hunt Actor Jeri Ryan Dr. Kate Murphey Actor Mark Valley Detective Tommy Sullivan Actor Elyes Gabel Detective Adam Lucas Actor Geoffrey Arend Dr. Ethan Gross Actor Windell Middlebrooks Dr. Curtis Brumfield Actor Mary Mouser Lacey Fleming Actor Henry Ian Cusick Guest Star Lorraine Toussaint Guest Star Jonathan Banks Guest Star Larry Sullivan Guest Star Mark Saul Guest Star Kurtwood Smith Guest Star Joanna Cassidy Guest Star Christopher Murphey Executive Producer Matthew Gross Executive Producer Sunil Nayar Executive Producer Corey Miller Writer John Terlesky Director