"Dad" Harold Shrinks, Sr. (voiced by the late Paul O'Sullivan) is a musician in a jazz band and is the father of George and Junior. He is usually constantly reconstructing Instruments and pitch formulating.
Most of his rhythm instrument's resemble an large distorted tubas and saxophone in search for the perfect sound. Harold is a bit eccentric, but he still loves his family and is a good dad.
Being constructive, shape molding and tinkering, always trying out many other types of instruments.
Harold has a similar hairstyle to his son and a beard. He wears a dark green vest and oversized khakis.
- George Shrinks (son)
- Harold Shrinks, Jr. (son)
- Perdita Shrinks (wife)
- Aunt Eunice (aunt-in-law)