Peggy McGee

Peggy McGee (also known as The Pyramid) is the main antagonist of the Phineas and Ferb episode Thanks But No Thanks. She was a former neighbor of the Flynn-Fletcher family who was known to be a con artist.

She was voiced by Goldie Hawn.

Role
Peggy first appeared at her window as she witnessed Candace Flynn fuming her failures to expose her brothers' antics to their mother Linda (notably on their latest project with human pyramids to make sports more fun). Eventually, Peggy calls out to Candace and admits that she saw the boys' previous adventures and inventions and is very astounded by it. Sensing an opportunity, Candace decides to have Peggy come over to the Flynn-Fletcher house and explain everything to Linda, but Peggy is too scared to leave her house. Candace then settles in bringing Linda over to Peggy's house.

However, every time Candace brings Linda over to the backyard to see Peggy, the latter is nowhere to be seen, and an annoyed Linda leaves right before Peggy returns to the scene, much to Candace's annoyance. However, in the end, Candace finally got Linda to see Peggy in person at the front door, only to find out that Peggy is being arrested by several police officers. Linda and Candace are confused by this turn of events until one of the officers exclaimed a horrible truth: Peggy is being arrested for fraud as she was behind a "pyramid scheme" selling perspective-painted flat triangles as pyramids around Danville for profit. The officers also found a stash of her triangles inside her house as proof of their findings.

With her crime exposed, Peggy is sent away on a police car, but not before she vows that she will return back to the neighborhood before Linda serves pie for her family. Disappointed by this turn of events, Candace finally gives up, with Linda expressing her disgust to see that Peggy is nothing more than a greedy con artist living in their neighborhood.