DURING HALLOWEEN WEEK IN NY, A VAMPIRE IS FOUND DEAD WITH A STAKE THROUGH HIS HEART, ON ABC'S "CASTLE"

"Vampire Weekend" � As Halloween approaches, Castle and Beckett are called to a graveyard where the body of a young man sporting vampire fangs has been discovered with a wooden stake driven through his heart. Their investigation takes them deep into the heart of New York's underground vampire fetish community, where they learn that the motive for the victim's murder may be hiding within the pages of the graphic novel he was writing before his death, on "Castle," MONDAY, DECEMBER 21 (10:00-11:00 p.m., ET/PT) on ABC. (Rebroadcast: OAD: 11/2/09)

Note: This episode replaces "Famous Last Words" which moves to Dec. 14.

"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: Anita Barone as Janice Freeman, Robin Thomas as Alan Freeman, Samantha Shelton as Vixen.

"Vampire Weekend" was written by Terri Miller and directed by Karen Gaviola.

"Castle" is broadcast in 720 Progressive (720P), ABC's selected HDTV format, with 5.1 channel surround sound and Spanish subtitles via secondary closed captioning. This program carries a TV-PG,D,L,V parental guideline.

For more information on "Castle," visit ABC.com