Castle | EW.com

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Castle

10-11 p.m., Monday, ABC

Nathan Fillion and the cast of Castle

Nathan Fillion and the cast of Castle (Bob D'Amico/ABC)

The ”I love you” uttered by Castle (Nathan Fillion) to Beckett (Stana Katic) ?as she lay injured from a gunshot in last season’s finale will help usher in a new chapter for the will-they-or-won’t-they couple. ”The premiere episode is layered with many reveals that will help dictate the relationship between Castle and Beckett this year,” exec producer Laurie Zaks says. While mum on the specifics, Fillion teases that the result will be ”enough to keep people interested…without going too far that you can never go back.” On the crime-fighting front, season 4 will see the return of the 3XK killer, a Halloween-themed episode, and the arrival of a new no-nonsense captain (24’s Penny Johnson Jerald), whose tough management style doesn’t sit well with, basically, anyone. ”Castle’s not used to being unliked,” says Fillion. ”He’s certainly going to take it personal.” (Sept. 19)

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