DESPERATE HOUSEWIVES - "They Asked Me Why I Believe in You" -- Susan's longtime book agent and dear friend, Lonny Moon (guest star Wallace Shawn), gets into financial trouble; Lynette is forced to go out to bars night after night with her man-hungry boss, Nina (guest star Joely Fisher); Bree re-buries Rex amid police suspicions, and Gaby hires hotshot lawyer David Bradley (guest star Adrian Pasdar) to defend Carlos, on Desperate Housewives," SUNDAY, OCTOBER 23 (9:00-10:01 p.m., ET) on the ABC Television Network. (ABC/RON TOM) JOELY FISHER, FELICITY HUFFMAN