BECKETT CONNECTS WITH A HANDSOME NEW DETECTIVE AS SHE AND CASTLE INVESTIGATE THE MURDER OF A THIEF, ON ABC'S "CASTLE"

"Den of Thieves" - Investigating the murder of a thief, Castle and Beckett are surprised to learn that Esposito has a personal connection to the suspected killer. Another surprise is in line for Castle when Beckett hits it off with the handsome Robbery detective assigned to the case, Tom Demming (Michael Trucco in a recurring role rest of season). Now this romantic triangle must work together to solve the case, on "Castle," MONDAY, APRIL 19 (10:00-11:00 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, 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: Michael Trucco as Tom Demming, Scott Cohen as Lt. Stan Holliwell and Abby Brammell as Carol Thornton.

"Den of Thieves" was written by Will Beall 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 ABC.com