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 Jay Karnes Guest Star Jessica Tuck Guest Star Alex Fernandez Guest Star Christopher Murphey Executive Producer, Writer Matthew Gross Executive Producer Sunil Nayar Executive Producer Paul Holahan Director