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"Alicia Lagano will guest star in the upcoming sixth season of Castle. The Client List actress is to appear in episode four as a fugitive named Emma Briggs, reports TVLine.   Briggs will have urgent business with Nathan Fillion&amp;#039;s character Rick, and takes several people hostage in order to talk to the novelist. Lagano has previously guest starred in The Mob Doctor, CSI: Miami, Bones and Dexter. Castle&amp;#039;s upcoming season will also feature Lisa Edelstein guest starring as a federal investigator named Rachel McCord, and Antonio Sab\u00E0to, Jr playing a faded star of a fictional 1990s teen-themed sitcom. Watch a season six promo for Castle below:      "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/tv/ustv/news/a506740/castle-adds-client-list-actress-alicia-lagano-for-season-six/>