Mrs. Claus (Sayla de Goede) is the secondary antagonist of the 2017 horror film "Once Upon a Time at Christmas".
"Mrs. Claus" (real name ungiven) is a deranged murderer who escapes and teams up with equally deranged war veteran "Santa Clause" after the mental institution they were being held at burns to the ground. Possessing a great love for killing, she helps him commit specific murders all revolving around the lyrics to the Christmas song "Twelve Days Of Christmas". Though she is caught and arrested at the climax of the film, the final shot shows the un-apprehended "Santa Claus" appearing behind the officer guarding her jail cell; implying that she would be freed.
