Annie Paxton (more commonly known as Gammy) is the ninety year old grandmother of Andrew Paxton.
Gammy disapproves of Joe and Andrew fighting, and forces them to reconcile after faking a heart attack after Margaret leaves the ceremony. Thinking she is dying, both Andrew and Joe agree.
Annie and Grace are best friends, begging to hear the story of the proposal, taking Margaret stripping and dress fitting.
After recovering from the initial shock of Margaret's age, Gammy took a liking to Margaret, convincing her to open up and be comfortable with Andrew's family. She ordered Andrew to kiss her, took her to a strip club, thanked nature with her while break dancing and gave her a dress and necklace that was in the family for generations. Even after the truth about the engagement came out, Annie stayed on good terms with Margaret as she knew she loved Andrew, Margaret continued to wear the necklace.
- Grandma Annie: (upon being introduced to Margaret) Do you prefer Margaret or "Satan's Mistress"?
- Grandma Annie: (to the MedEvac pilot when he refuses to take her to the airport) Don't make me call your mother!