Follow us for daily Witches! “Double, Double, Toil and Trouble” (1993) The story follows seven-year-old twin sisters Kelly and Lynn Farmer, played by Mary-Kate Olsen and Ashley Olsen, who embark on a magical adventure to save their parents, Don (Eric McCormack) and Christine Farmer (Kelli Fox), from financial ruin. The twins discover that their Great Aunt Sophia (Cloris Leachman) is trapped in a mirror by her evil twin sister, Aunt Agatha (also Cloris Leachman), who wields a powerful moonstone.