From Bill: Hanna-Barbera Talking Dog Scale

1 Dino - A dog in all but form. No speech, but could help with
household chores from time to time. (We'll discount his first appearance)
2 Muttley - No more talking than 'razza-frazza', but he wore clothes
(okay, racing goggles and a scarf) and walked upright
3 Scooby - Could utter simple phrases albeit with a strong dog accent.
Never wore clothes (except when disguised) and occasionally walked or stood
upright
4 Astro - Capable of full sentences, once again with a strong dog
accent ("Rokay, Reorge"). Otherwise, dog-like in behavior: walked on all
fours, naked, ate from a dog dish, etc.
5 Scooby Dumb - Scooby's 'dumb' cousin could speak better than him!
Wore a hat
6 Scrappy - Normal human speech, walked upright, but wore nothing but
a dog collar
7 Dynomut - Regular speech; wore a superhero outfit; capable of
handling sophisticated equipment
8 Hong Kong Phooey - Human, other than his dog shape