Maggie is a young human child and a founding member of the Rowdy Reds, a group inspired by the Awesome Ones' online videos. She sports overalls bearing a blue triangle symbol, marking her Aquos faction allegiance, and her guardian Bakugan is an Aquos Skorporos.

The Rowdy Reds, Maggie included, discovered their Bakugan by digging indiscriminate holes across Los Volmos, disregarding property lines and environmental impact. Maggie debuts in "Monkey See, Monkey Don't," joining her teammates in destructive park brawls. They initially dismiss Dan Kouzo's pleas for safer practices, continuing their reckless battles until the resulting devastation forces the Awesome Ones to intervene. Dan battles all three Rowdy Reds at once, successfully demonstrating the consequences of their actions, after which Maggie and her friends help clean up the damage.

Later, Maggie and the Rowdy Reds face bullying from Marco Chezanello, who seizes their park using his Bakugan Cyndeous. Defeated and displaced, Maggie seeks the Awesome Ones' aid at Studio D. Returning to the park with them, they find it transformed and guarded by Marco's ally Max. When Marco commands Cyndeous to attack Maggie and the others during the ensuing brawl, Cyndeous rebels against Marco's cruelty. Dan Kouzo and Drago intervene to protect the group, leading to Cyndeous abandoning Marco. Maggie and her teammate Mac accept Max's apology for supporting Marco.

Maggie also volunteers with the Rowdy Reds for a Bakugan news story coordinated by the Awesome Ones and reporter Veronica Venegas. During this, their Skorporos Bakugan are compromised, brainwashed by Strata the Hunter to respond only to Dan Kouzo.

Maggie's known brawling record includes one unresolved battle against Dan Kouzo, called off before an outcome was determined.