Aggie is an optimistic girl who has a knack for adventure. She has a passion for horses and other girly things. She also can be seen to be concerned for her friends in some issues but also finds a way to make things right with them.
Aggie has fair skin with caramel colored hair, black eyes, and freckles. She has a different outfit in every issue.
- Her real name is revealed to be Agatha, as seen in "My Brother the Turkey".
- She has been to Charlton Caverns, as mentioned in "Clothes Call".
- She shares the same birthday as Fiona.
- She hates tests, as seen in "The Dreaded Spelling Test"