WHEN AN ER PHYSICIAN IS GUNNED DOWN IN THE STREET, CASTLE & BECKETT SOON DISCOVER THAT THE VICTIM WAS MOONLIGHTING AS A MOB DOCTOR, ON ABC'S "CASTLE"

"Bad Santa" - When an ER physician is gunned down in the street, Castle and Beckett soon discover that the victim was a mob doctor to a Mafia family run by an old friend of Castle's. Also, against the backdrop of Christmas, Esposito and Lanie reach a defining moment in their relationship, on "Castle," SUNDAY, JULY 5 (10:01-11:00 p.m., ET) on the ABC Television Network. (Rebroadcast. OAD: 12/8/14)

"Castle" stars Nathan Fillion as Richard Castle, Stana Katic as NYPD Detective Kate Beckett, Susan Sullivan as Martha Rodgers, Molly Quinn as Alexis Castle, 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: Carole Gutierrez as Dr. Deb Lander, Larry Poindexter as Det. McBride, Vincent Spano as Christopher Carlucci, Mo Gallini as Rocco Carducci, Paul Ben-Victor as Dino Scarpella, Alex Frnka as Jane Scarpella.

"Bad Santa" was written by Chad Gomez Creasey & Dara Resnik Creasey and directed by Bill Roe.

"Castle" is produced by ABC Studios. The executive producers are Andrew Marlowe (creator), David Amann (showrunner), Rob Bowman, Armyan Bernstein, Rob Hanning and Terri Edda Miller.

"Castle" is broadcast in 720 Progressive (720P), ABC's selected HDTV format, with 5.1 channel surround sound. This program carries a TV-PG,S,V parental guideline.

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