Maggie Cadabby is a Fairy Godmother and the mother of Abby Cadabby. Although she had been mentioned by Abby in various instances on Sesame Street and made a few illustrated appearances, she was never seen on the show and wasn't named until 2018.
In Abby's earliest appearances, she would often speak to her mother (calling her "Fairy Godmommy") on her wand phone. In Abby's debut episode in 2006, Abby calls her mother to revert a spell that Abby cast on a toaster at the Fix-It Shop. At first, Abby reaches her mother's answering machine, which says she's currently having tea with Rumpelstiltskin. According to a tweet by Abby, her mother was Cinderella's Fairy Godmother and she "majored in magic with a minor in gown design." Abby's mother appeared in illustrated form in the storybooks Abby Cadabby's Rhyme Time (2007) and Abby's Pink Party (2011), depicted with a tuft of hair similar to her daughter's pom-pom pigtails.
In the 2012 resource video, Little Children, Big Challenges: Divorce, it is revealed that Abby's mother and father are divorced. Although Abby's parents are no longer married and live in different houses, Abby learns that they both still love her. Here, Abby's parents are depicted in illustrated crayon drawings. Additionally, in a brief shot during a musical number, Abby's mother's fuzzy pink hands are seen tucking her daughter into bed.
Abby's mother made her first full-fledged appearance as a Muppet in 2018, featuring in several videos produced for Sesame Street in Communities. Performed by Jennifer Barnhart, she gained the name Maggie Cadabby. In a three-part series of videos about milestones, Maggie and Freddy are seen moving and unpacking boxes into their new home at 123 Sesame Street. Maggie also appears in a video series on school readiness. In one video, she helps console Abby after accidentally spilling some honeysuckle petunia juice. She will make her first onscreen appearance on the show in season 50 in Episode 5026.
- Maggie Cadabby wears visible pumpkin earrings, a reference to Abby's recurring habit of turning objects into pumpkins. Maggie also occasionally refers to her daughter as "pumpkin."