Susan Heffley is the mother of Greg, Rodrick, and Manny in the Diary of a Wimpy Kid book series, known for her controlling, optimistic, and sometimes embarrassing attempts to bond her family, often favoring her youngest son, Manny, and clashing with Greg and Rodrick. She is a homemaker who was a former PTA member and preschool teacher, and in the film adaptations, she is portrayed by Rachael Harris (first three films) and Alicia Silverstone (in The Long Haul).