| Clue | Relative |
| Scooby's young nephew (and son of Scooby's sister), the bravest of Scooby's relatives. | |
| Scooby's brother, a white dog owned by Deputy Dusty in the American southwest; his catchphrase at the end is 'Yippity-Yabbity-Doooo!!!' | |
| Scooby's cousin, a blue-grey dog who longed to be a detective. Was rather dimwitted (he'd keep looking for clues even after the mystery was solved). | |
| Scooby's distant female cousin, a white dog. Spoke with a Southern accent, and was an actress. | |
| Scooby's cousin, a singer. He is one of Scooby's few relatives to have hair on his head. | |
| Scooby's mother; the only one who calls him 'Scoobert.' | |
| Scooby's father. | |
| Scooby's cousin, a clown. Owned by Shaggy's uncle, Gaggy. | |
| | Clue | Relative |
| Scooby's sister, and mother of #1 | |
| Scooby's brother. Highly intelligent; he wears glasses. | |
| Scooby's brother. Enjoyed reading Supermarket tabloid newspapers. He appears to become a redhead. | |
| Scooby's uncle. Was interested in monsters and science. | |
| Scooby's cousin and the pet of Betty Lou, Shaggy's Southern cousin. | |
| Scooby's grandfather. | |
| Scooby's great-grandfather. | |
| Scooby's ancestor, owned by Shaggy's ancestor, McBaggy Rogers. | |
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