CASTLE Preview: October 25 on ABC

"3XK" - When a beautiful woman is found dead in an alley, all clues point to her being a victim of the notorious Triple Killer. The Triple Killer, or 3XK, terrorized New York City four years ago, then mysteriously disappeared. Now he's back. In a deadly battle of wits, Castle and Beckett race against time to stop 3XK before he claims his next victims. Lee Tergesen of "Oz" (as Marcus Gates, a violent felon and prime suspect in the serial killer investigation) and Michael Mosley of "Scrubs" (Gates' former cellmate) guest star in "3XK," one of the most thrilling episodes of the series to date, on "Castle," MONDAY, OCTOBER 25 (10:01-11:00 p.m., ET), on the ABC Television Network.

Editor's Note: This episode replaces "Almost Famous," which moves to Monday, November 1 (10:01-11:00 p.m., ET).

"Castle" stars Nathan Fillion as Richard Castle, Stana Katic as NYPD Detective Kate Beckett, Susan Sullivan as Martha Rodgers, Molly Quinn as Alexis Castle, Ruben Santiago-Hudson as NYPD Captain Roy Montgomery, Tamala Jones as Medical Examiner Lanie Parish, Jon Huertas as NYPD Detective Javier Esposito and Seamus Dever as NYPD Detective Kevin Ryan.

Guest Cast: Lee Tergesen as Marcus Gates, Michael Mosley as Jerry Tyson, Brian Klugman as Paul McCardle, Joe O'Connor as Cal Townsend, Anne Marie Howard as Angela Russo.

"3XK" was written by David Amann and directed by Bill Roe.

"Castle" is produced by ABC Studios. Andrew Marlowe is creator/executive producer/writer, along with executive producers Rob Bowman, Laurie Zaks and David Amann.

"Castle" is broadcast in 720 Progressive (720P), ABC's selected HDTV format, with 5.1 channel surround sound. A TV parental guideline will be assigned closer to airdate.

"Naked Heat" (out September 28) is the thrilling sequel to Richard Castle's "Heat Wave," which spent 16 weeks on The New York Times bestseller list when it was published last fall. This is Castle's second mystery novel to feature Nikki Heat, a tough, sexy and professional detective based on NYPD Homicide Detective Kate Beckett, with whom Castle solves crimes and trades barbs from one case to the next. The two are no strangers to innuendos and unfulfilled sexual tension while trailing murderers.

For more information on "Castle," visit ABC.com. Viewers can also follow the show via http://facebook.com/Castle and Twitter: Castle_ABC

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