Mrs. Potter is the administrator of Mrs. Stafford-Smyth's home. She is in charge of the staff and taking care of the home. Mrs. Potter is describes as being stern faced and distant. She does not like for people to be late. It is noted in the book that Potter had taken a dislike to Belinda at first because Belinda notes that at one point in their relationship, Potter would have enjoyed waking up Belinda even though she knew she was tired. Now, however, Potter has developed a respect for Belinda and treats the girl kindly.