Seamus Dever News

New series for the 2013-14 season are "Back in the Game," "Betrayal," "The Goldbergs," "Killer Women," "Lucky 7," "Marvel's Agents of S.H.I.E.L.D.," "Mind Games," "Mixology," "Once Upon a Time in Wonderland," "Resurrection," "Super Fun Night," "Trophy Wife" and new alternative series "The Quest."

On tonight's Season Finale of ABC's CASTLE titled "Watershed", an interview with a high-profile federal law enforcement agency forces Beckett to reconsider what she wants out of her job -- and out of her relationship with Castle. Get a sneak peek below!

Though the series hasn't even been picked up for a sixth season (though rest easy, it will be), the network is reportedly considering granting Castle and Beckett a seventh as well. Castle has quickly become ABC's most-watched drama, thanks a lead-in from DANCING WITH THE STARS.

On the next episode of ABC's CASTLE titled "The Squab and the Quail" - When Beckett is assigned to protect Erik Vaughn, a charming billionaire entrepreneur whose life is in danger, she's forced to reflect on her relationship with Castle which has begun to plateau. Get a sneak peek below!

On CASTLE's upcoming episode, titled 'The Human Factor,' when Homeland Security inexplicably seals the crime scene of a car bombing, Castle and Beckett find themselves with two mysteries on their hands: who murdered the victim, a government whistleblower, and why are federal agents trying to take over the case? The plot thickens when they discover that the victim wasn't killed by a car bomb but by a missile from a military drone, on MONDAY, MAY 6 (10:01-11:00 p.m., ET) on ABC. Carlos Bernard guest stars as Jared Stack, a mysterious operative who may hold the key to solving the case.

On tonight's episode of ABC's CASTLE titled "The Wild Rover", when a man is found dead in an industrial cake mixer, Castle and Beckett trace the murder to an Irish gang in Staten Island and a beautiful bar owner named Siobhan O'Doul (guest star Cara Buono, "Mad Men"). Get a sneak peek below!

Join 'Castle' cast member Seamus Dever as he live tweets before and during the east coast and west coast broadcasts of 'Castle' on MONDAY, MARCH 25 from 10:00-11:00 p.m., ET/PT, on the ABC Television Network. You can follow Seamus @seamusdever on Twitter and join in on the conversation on the episode airing that night, as well as chat about the show's upcoming 100th episode airing April 1.