- Percy's Nana wears a pink knit sweater with puff-balls lining the chest, and a floral pattern skirt. She walks using a walker and wears pink flats with matching puff-balls on the toe. She's usually seen wearing a pastel blue jacket with a plush white trim. Her hair is white and is short tufty curls, her eyes are brown, and she wears a pair of coke bottle glasses.
- She appears to be a very kind and superstitious old lady with very spiritual and unconventional beliefs about how the universe works.
- Because Nana is Percy's grandmother on his mother's side, Nana is not blood-related to PB.