|Occupation||Principal of Summer Bay High|
|Relationships||Ben Astoni (husband)|
|Family|| Ben Astoni (husband)|
Ziggy Astoni (daughter)
Coco Astoni (daughter)
|First Appearance||21 July 2017|
|Portrayed by||Kestie Morassi|
Maggie brings her youngest daughter Coco home, after she is suspended from school for cyber bullying. Maggie suggests to her husband, Ben, that they go on a trip and they decide to visit her mother, but they end up in Summer Bay when Ben leaves the main road. After their car breaks down, the family stay at the Caravan Park. Ben and Maggie go to the Pier Diner for dinner and Maggie falls out with Leah Patterson-Baker, after jokingly implying that Leah was checking Ben out. Maggie, Coco and Ziggy take a bus tour around the Bay and Maggie falls in love with the Farmhouse, which is for sale.
She later learns that the principal job at the local high school is available. She has an interview and is offered the position. She and Ben decide to purchase the Farmhouse and the pier, which includes the leases for the diner and bait shop. Maggie and Ben are invited to lunch with Leah, Irene Roberts, Alf Stewart and Roo Stewart where they try and discuss their plans for adding another business to the pier, which would mean taking space from the diner.
Leah and Irene object to their plans. Maggie later apologises to everyone. She embarrasses Coco on her first day at Summer Bay High, by calling her by her nickname "Coco Pops", which student, Jennifer Dutton overheard and she teased and bullies Coco about her nickname. Maggie and Ben learns that Ziggy befriended with Brody Morgan, who is a drug addict and they told her to stay away from him. Maggie and Ben also learn that Coco befriended with Leah's son VJ Patterson, which made Ben and Leah uncomfortable.
Maggie has long dark brown hair and brown eyes. She mostly wore long, maxi summer dresses and sandals.