Castle - Season 8 - Ann Cusack to Guest - best f y

Private Practice alum Ann Cusack has landed a provocative guest-starring role in Castle‘s Season 8 premiere.

TVLine has learned exclusively that the actress will appear in the second half of the two-part season opener as Rita, a member of a top-secret organization who drops into Beckett’s life with a unique set of skills… and an unexpected connection to Castle.