THE TEAM IS SHOCKED WHEN CASTLE EMERGES AS THE LEAD SUSPECT IN A BIZARRE MURDER, ON ABC'S "CASTLE"

"Probable Cause" - While investigating a shocking ritualistic murder, Beckett and her team uncover surprising evidence linking Castle to the killing. As the evidence against him mounts, loyalties are tested, and when surprising revelations come to light, Beckett begins to wonder how well she really knows her new lover and partner of four years, on "Castle," MONDAY, OCTOBER 29 (10:01-11:00 p.m., ET) on ABC.

"Castle" stars Nathan Fillion as Richard Castle, Stana Katic as NYPD Detective Kate Beckett, Susan Sullivan as Martha Rodgers, Molly Quinn as Alexis Castle, Penny Johnson Jerald as NYPD Captain Victoria Gates, Tamala Jones as Medical Examiner Lanie Parish, Jon Huertas as NYPD Detective Javier Esposito, and Seamus Dever as NYPD Detective Kevin Ryan.

Guest Cast: Alexa Havins as Elle Daniels, Romi Dias as ADA Toni Gonzalez, Gerald Downey as Lloyd Kurtzman.

"Probable Cause" was written by Andrew W. Marlowe and directed by John Terlesky.

"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.

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