So Charlize Theron uglified herself for North Country. Big whoop. Her real fashion risk resumes Nov. 7 on Fox's Arrested Development, when Theron jumps back into the Wellington boots of Rita, an English free spirit who's not afraid to sport what appears to be a giant doily-turned-sweater, or a Daniel Boone cap over pearls and a fuzzy seal backpack. Rita's eccentricity exec producer Mitch Hurwitz describes it as Harajuku girl-meets-British mod has won the heart of Michael Bluth (Jason Bateman), but sadly, she also appears to be a spy involved in a plot to take down the Bluth family. ''There's a reason we're dressing her that way. We can't really say why,'' says costume supervisor Marilynn Oleksinski. ''But the payoff is big.''