Castle Scoop: Eddie McClintock to Guest-Star in Season Finale

Castle and Beckett's nuptials may have just gotten a little more complicated.

Eddie McClintock has been tapped to guest-star in "For Better or Worse," the upcoming season finale of Castle, has confirmed.

The best and worst series finales

The Warehouse 13 alum, whose credits also include Modern Family and The Mentalist, will play...


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