Wendy Stinglehopper is a girl who was kissed by Baljeet. She was on the math team with him and wanted a big hat for Christmas. Isabella described her as "that pretty girl from the math team". Baljeet appears to have romantic feelings for her. ("Phineas and Ferb Christmas Vacation!")
Wendy has long brown wavy hair with a blue hairband. She wears a light blue shirt with dark blue dots and dark blue pants with light blue dots (these may be her pajamas). She also wears grey shoes.
- Probably likes and is good at math because she's on the math team.
- Ariel Winter also voices Gretchen of the Fireside Girls.
- Her last name is similar to "Dinglehopper", a made-up word from The Little Mermaid.
- It appears she's an only child since there were only stockings for her and her parents.
- She is one of the first children who is kissed on-screen.
- "Phineas and Ferb Christmas Vacation!" (First appearance)