Lydia Pearson (née Lilly) (voiced by April Winchell) is Pepper Ann's mom. Lydia is a beautiful, divorced, single working mother. She works at a fashion boutique, and makes pretty good money. Pepper Ann is usually embarrassed by her, but she sometimes surprises Peppie (as she calls her), like her connection with Mick Snot. Lydia has a sister named Janie Diggety.
- In "P.A.'s Life in a Nutshell", Lydia is revealed to have been roughly Pepper Ann's age on March 28, 1968 (12-13). Seeing as how the series is supposed to take place in 1997-98, that would mean that Lydia is roughly 41-42 years old.
- Despite being called Lydia throughout the series, she is always listed as simply "Mom" in the credits.