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True Blood's Jessica Tuck to Guest-Star on Castle

True Blood's Jessica Tuck is stirring up trouble on the new season of Castle, TVGuide.com has confirmed. Tuck, who plays vampire-human liaison Nan Flanagan, will guest-star as...

Natalie Abrams
Natalie Abrams

True Blood's Jessica Tuck is stirring up trouble on the new season of Castle, TVGuide.com has confirmed.

Tuck, who plays vampire-human liaison Nan Flanagan, will guest-star as a wealthy museum benefactor who becomes a suspect in a murder investigation, as TVLine.com first reported.

Castle Scoop: The Killing star to come between Castle and Beckett?

The Killing's Kristin Lehman also guest-stars in the same episode as a sexy art insurance investigator who joins Castle (Nathan Fillion) and Beckett (Stana Katic) on the investigation that involves the theft of a sculpture. She also sets her sights on Castle, much to Beckett's chagrin.

Tuck, 48, is also known for her roles on One Life to Live, Days of Our Lives and, more recently, Super 8.

Castle returns Monday, Sept. 19 at 10/9c on ABC.