By now, we know that Richard Castle and Kate Beckett will get married in September and we've all seen the wedding dress . Or maybe that's what they want us to think, about the dress. From reading the press release for the episode Dressed to Kill , airing on 27 January, the dress is part of the runway outfits that models wear for show and that Frances Fisher's character, Matilda, is just helping Kate choose. (c) TV Guide Remember in Season 7 of FRIENDS , the episode The One With the Cheap Wedding Dress , Monica had shown a picture of the wedding dress she liked to Rachel and Phoebe and would get it off-the-rack (because they're spending all their money on the wedding itself). It was this dress: (c) Fanpop Yet, it wasn't the dress that she wore, and wanted, to their wedding in the season finale, The One With Monica and Chandler's Wedding . It was this: (c) InStyle Even if the initial dress she wanted was traded so that she can book the ...