Since I don't know the exact 'Anne Perry Christmas story', it's hard to say for sure. But in her works, she often has characters from different social strata in the Victorian era, like noblemen, servants, and middle - class individuals.
In many of Anne Perry's stories, there could be a detective - like character who tries to solve mysteries or problems during the Christmas time in the story. There might also be family members, such as a mother, father, and their children, who play important roles in the story's development and in bringing out the Christmas spirit.
Perhaps there are characters who are outcasts or have a troubled past. These characters could be central to the 'Anne Perry Christmas story' as they may be the ones who experience the most transformation during the Christmas season. They could be befriended by more upright characters, and together they could create a story of hope and change.