William
Revision as of 13:59, 23 March 2013 by imported>Jonny Mole (He was 26 years older then his wife? whats this fake made up birth date.)
William Heffley is or was Greg's great grandfather and is on Dad's side of the family. He is or used to be married to Helen.
Appearances
- Diary of a Wimpy Kid: Do-It-Yourself Book (extended version) in the family tree Greg had made.