The Dino, Astro and Scooby-Doo Show is a fanon show.
- Dino: The youngest of the group. He is Fred Flintstone's dog, and also dimwitted and klutzy friend of Astro and Scooby. He also speaks. He is also naive, gullible and cheerful. Voiced by Frank Welker.
- Astro: The most eccentric of the group. He is George Jetson's dog. He is happy-go-lucky, exciteable, klutzy and friend of Dino and Scooby. Voiced by Frank Welker.
- Scooby-Doo: The oldest of the group. He is the Mystery Inc. Gang's dog. He is more mature, sometimes act cowardice and gluttony. He is friends with Astro and Dino. Voiced by Frank Welker.
- None of the dogs wear their collars on here.