Madeleine "Maddy" Ferguson is a fictional character in David Lynch's 1990 American TV series Twin Peaks. She is portrayed by Sheryl Lee. Maddy first appears near the end of the first season, when she travels to Twin Peaks from her hometown of Missoula, Montana. She comes to help her uncle and aunt, Leland and Sarah Palmer, overcome the loss of their daughter, Laura, who had been murdered. Maddy seems to be a few years older than Laura, but otherwise looks identical, excluding Maddy's dark hair and bookish glasses. Maddy even remarks that she and Laura used to pretend they were sisters. Despite the visual similarity, the innocent and sweet Maddy stands in stark contrast to Laura, whose personal life is steeped in sex and deception. Like Laura's mother and Laura herself, Maddy has premonitions, including one of a bloodstain on the floor of the Palmers' living room and another of 'Bob', a demonic entity plaguing the town. Maddy quickly befriends Donna Hayward and James Hurley, Laura's closest friends, and helps them in their investigation into Laura's death. At one point, Maddy even appears wearing a blonde wig in order to lure out one of Laura's acquaintances. During the second season, Maddy begins to resemble her cousin more and more: her hair (though still dark) straightens, she stops wearing her glasses, and in her carriage and demeanor she behaves more like the character of Laura seen in the prequel movie Twin Peaks: Fire Walk with Me than the Maddy shown in the first season. Eventually, she is herself murdered by Leland Palmer, who is possessed by 'Bob', in a violent recreation of Laura's murder. Maddy's death shortly leads to Leland's arrest.
