Mrs. Mancy

Mrs. Mancy was the principal of Greg's school. Like Trista and Gammie,she has a rather minor but a important role. She only appeared at the school dance, where she was with Mr. Underwood noting down the marks of the kids dancing.

Role in The Last Straw
In the Valentine's day dance at The Last Straw she told every student that the dance would count 20% of their phys ed grades and went with Mr. Underwood noting down the marks.

Role in Cabin Fever
She is briefly mentioned when Mrs. Lahey threatened Leon Goodson and the other kids to spill their Rowdy Riots or she will report them to the principal.

Role in The Third Wheel
She is mentioned by Greg when she announced that there is a limit of toilet papers the kids can bring and only 5 are allowed.

Appearances

 * Diary of a Wimpy Kid: The Last Straw (first and only physical appearance)
 * Diary of a Wimpy Kid: Cabin Fever (mentioned)
 * Diary of a Wimpy Kid: The Third Wheel (mentioned)