This unnamed character is the mother of Fregley. She briefly appears in the first book when Greg meets her after coming over to Fregley's house for a sleepover, intending to make Rowley jealous. In the movie it is mentioned that she makes unusual clothing for Fregley out of old clothes. For example, a shirt made out of old pajamas.
- Although she appears briefly in the Mother & Son Sweetheart Dance, she originally had a larger role in the film, where Fregley introduced Greg to her where she explains that he never had friends before and where it shows that she works as a seamstress. The scenes were cut from the film but were included in the film's deleted scenes.