Scooby-Dum: My cousin. A Mortimer Snerd-esque dog who longed to be a detective. Was rather dimwitted (he'd keep looking for clues even after the mystery was solved).

Scooby-Dee: My cousin, a white dog. Spoke with a Southern accent, and was an actress.

Scrappy-Doo: My nephew (and son of Ruby-Doo), Scrappy is the most noteworthy of my relatives. Scrappy became a recurring character beginning in the late 1970s, and was noted for being quite headstrong, and would always want to face off in a fight against the various villains (unlike his uncle). Me and Shaggy were present at Scrappy's birth. In the first live-action movie, he was portrayed as a villain, in response to the public dislike toward his character.

Yabba-Doo: My brother, who was owned by a sheriff and lived in the American southwest.

Dooby-Doo: My brother, a singer.

Whoopsy-Doo: My cousin, a clown. Owned by Shaggy's practical joke-pulling uncle, Gaggy Rogers.

Ruby-Doo: My sister, and mother of Scrappy-Doo.

Mumsy and Dada Doo (also called Mama and Daddy Doo and Mommy and Daddy Doo at various times): My parents.

Skippy-Doo: My brother. Highly intelligent.

Howdy-Doo: My brother. Enjoyed reading supermarket tabloid newspapers.

Horton-Doo: My uncle. Was interested in monsters and science.

Dixie-Doo: My cousin.

Grandpa Scooby: My grandfather.

Great-Grandpa Scooby: My great-grandfather

Scooby-Dooby-Doo, Where Are You?
We got some work to do now.

Scooby-Dooby-Doo, Where Are You?
We need some help from you now.

Come on Scooby-Doo, I see you... pretending you got a sliver
But you're not fooling me, cause I can see, the way you shake and shiver.
You know we got a mystery to solve,
So Scooby Doo be ready for your act. [Scooby Doo] Uh-uh Uh-uh
Don't hold back!
And Scooby Doo if you come through
you're going to have yourself a scooby snack!
That's a fact!

Scooby-Dooby-Doo, here Are You.
You're ready and you're willing.
If we can count on you Scooby Doo,
I know you'll catch that villian.