Dana Delany Dr. Megan Hunt Actor Jeri Ryan Dr. Kate Murphey Actor Mark Valley Detective Tommy Sullivan Actor Windell Middlebrooks Dr. Curtis Brumfield Actor Geoffrey Arend Dr. Ethan Gross Actor Elyes Gabel Detective Adam Lucas Actor Mary Mouser Lacey Fleming Actor Dennis Boutsikaris Guest Star Lorraine Toussaint Guest Star Marisa Ramirez Guest Star Robyn Lively Guest Star Francois Chau Guest Star Kelly Frye Guest Star Brooklyn Sudano Guest Star Dahlia Salem Guest Star David Gautreaux Guest Star Christopher McDonald Guest Star Joanna Cassidy Guest Star Christopher Murphey Executive Producer, Writer Matthew Gross Executive Producer Sunil Nayar Executive Producer Sam Hill Director