Elsbeth is celebrating Halloween with a star-studded episode that might be more trick than treat. In Us Weekly's exclusive first look at the themed episode, which airs Thursday, October 30, Elsbeth (Carrie Preston) looks regal in a white ensemble with striped bows. In another still, she's in a more fall-inspired outfit with a pop of orange. The scariest sneak peek shows Elsbeth with Sharon (Annaleigh Ashford), who is described as a murderous suburban housewife.