Gramma

"I love all my grandchildren the same."

- —Gramma

Gramma is the grandmother of Greg, Rodrick, and Manny from Susan's side as shown in Do it yourself book's Heffley Family Tree. She tends to favor Manny, over Rodrick and Greg, but she denies this.

Diary of a Wimpy Kid
Gramma first appears during Halloween where Rowley Jefferson uses the bathroom. Greg and Rowley hide in her house after being chased by teeangers, but are forced to head back home by Susan because its a school night. On the bus drive to school, Greg feels sort of bad that the teeangers had teepeed and egged her house, but rebuffs his guilt by stating Gramma is retired and probably didn't have anything to do.

Diary of a Wimpy Kid: Rodrick Rules
As a way for Greg and Rodrick to earn Mom Bucks, Susan has the boys rake Gramma's leaves. Due to Rodrick's advice of tying the bag from the below, Gramma was not happy to hand over her hot chocolate stating they hadn't raked any of her leaves propley,but had to,as she made a deal that if they rake,she will give them hot chocolate. Manny is dropped off at Gramma's house while his parents go on vacation, because she favors him which she repeatedly denies stating that she "loves all her grandchildren equally".

Diary of a Wimpy Kid: Dog Days
It is shown she had a dog named Henry Greg's Forced to pay a fruit smoothie bill, Greg asks Gramma to be his refrence, but she declines asking when he and Rodrick will return to finish up the terrible job they had done in the fall. Frank then gives her Sweetie since nobody in the Heffleys wanted him.

Diary of a Wimpy Kid: Cabin Fever
Greg wishes that he could switch spots with Sweetie during the blizzard, because Gramma overfeeds him. When they went over to her house, she had given the guest room to Sweetie and forces Greg and Rodrick to sleep together on her pull-out couch.

Personality
She likes to play bingo but is not as serious as some of the ladies. She also reads tabloids, which leads to problems, as Susan claims that tabloids are full of lies. However, Gramma seems to believe the tabloids, such as when she would not answer her phone because she said it erases the memory of the elderly.

Appearances

 * Diary of a Wimpy Kid (first appearance)
 * Diary of a Wimpy Kid (film) (mentioned only as "Grandma")
 * Diary of a Wimpy Kid: Rodrick Rules
 * Diary of a Wimpy Kid: The Last Straw
 * Diary of a Wimpy Kid: Dog Days
 * Diary of a Wimpy Kid: The Ugly Truth
 * Diary of a Wimpy Kid: Cabin Fever
 * Diary of a Wimpy Kid: Do-It-Yourself Book
 * Diary of a Wimpy Kid: The Third Wheel