"Mom" Perdita Shrinks is a freelance artist by trade, who builds, sculpts and welds with a very abstract style. She is a member of the town's art committee and is into organic foods. Mom is very supportive of projects that the family and kids work on, and she enjoys helping out into the community. She also used to be a rockette which George reveals his dad told him in, "If It Ain't Broke". She is voiced by Kathy Laskey.
despite her motherly side, she dreams of being a giant often invited to a playful rampages with Becky Lopez and the way she destroys is with her hips and feet, she also lets George ride her feet when he shrinks smaller and rubs her feet.