Grandpa is the lovable but clueless grandfather of Greg, Rodrick and Manny, the father of Frank Heffley, Joe Heffley and Gary Heffley, the father-in-law of Susan Heffley and the widower of Nana Heffley. His first appearance was in Rodrick Rules, where he offered to let Greg and Rodrick stay at his boring retirement community, Leisure Towers; the experience was terrible for Greg. He was seen again in Dog Days, where he finally confessed to Frank at brunch that he ran over his dog, Nutty, enraging Frank. In The Ugly Truth, he appears at his son Gary's wedding, and the family reunion and even babysits Rodrick and Greg as their Gramma was on a cruise. In Cabin Fever, he appears only in a photo, but he makes a younger appearance when his son, Frank told him about his bully, Billy Staples he came to Billy's house along with his wife, telling Mr. Staplesabout Billy's actions. In Hard Luck, Greg mentioned that Grandpa had a girlfriend, because at Leisure Towers, a lot of women lined up at Grandpa's door trying to win him over with casseroles and baked goods. He dated a widow named Darlene, who broke up with him in Diary of a Wimpy Kid: Old School. Greg is his favorite.
Grandpa is always seen with his spectacles, but he takes them of when sleeping. He also wears dentures, is short and overweight, wears old fashioned clothes and suspenders. He is half bald with only some hair.
- Diary of a Wimpy Kid Online
- Diary of a Wimpy Kid: Rodrick Rules (First book appearance)
- Diary of a Wimpy Kid: Rodrick Rules (film)
- Diary of a Wimpy Kid: Dog Days
- Diary of a Wimpy Kid: Dog Days (film)
- Diary of a Wimpy Kid: The Ugly Truth
- Diary of a Wimpy Kid: Cabin Fever
- Diary of a Wimpy Kid Do-It-Yourself Book
- The Wimpy Kid Do-It-Yourself Book
- The Wimpy Kid Movie Diary
- Diary of a Wimpy Kid: Hard Luck
- Diary of a Wimpy Kid: Old School
- Diary of a Wimpy Kid: Double Down
- Wimpy Wonderland