Debi Mazar on CASTLE Season 2 October 7, 2009 Castle Check out the first photos of Debi Mazar guest starring on CASTLE Season 2 Episode 5 “When the Bough Breaks” which airs Monday, October 19 2009 at 10:00 p.m., ET. Debi Mazar will play Paula Haas, Castle’s book agent. Episode Synopsis Castle’s book agent, Paula Haas (guest star Debi Mazar), approaches him with a career changing opportunity, but taking it would mean the end of his relationship with Beckett. Will the murder of an unidentified woman found dead in a manhole be their last case together?, on “Castle,” MONDAY, OCTOBER 19 (10:02-11:00 p.m., ET) on ABC. Be the first to own the Complete First season of Castle On DVD as soon as it is available. (Photos: Courtesy of ABC) Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)