What actress plays Dr. Megan Hunt ?
Along with Hunt solving homicide cases are her colleagues , Nicholas Bishop as Peter Dunlop , Jeri Ryan as Dr. Kate Murphy , John Carroll Lynch and Sonja Sohn as Detective 's Bud Morris and Samantha Baker and fellow medical examiners , Geoffrey Arend as Dr. Ethan Gross and Windell Middlebrooks as Dr. Curtis Brumfield .