At one point, Frost becomes paranoid and starts to create physical copies of herself, known as bio-duplicates. One of her bio-duplicates, who is simply referred to as "Masque", turns on her creator and becomes an ally of the Avengers. She also creates robotic servants known as the "Inner Guard" and names them individually after notable historical traitors: Benedict, Brutus, Fawkes, Quisling, Monmouth (based on Benedict Arnold, Marcus Junius Brutus, Guy Fawkes, Vidkun Quisling, and the Duke of Monmouth) and two other, unnamed members.