18. Heathcliff and the Catillac Cats (syndication, 1984-1988)
Heathcliff had his share of pals over his cartoon life, from Dingbat and the Creeps to Marmaduke, but the game changed in 1984 when the second half of Heathcliff became The Catillac Cats. And then it was time for the adventures of Healthcliff's street-smart buddy Riff-Raff, his friends (Hector, Wordsworth, and Mungo), and lady-friend Cleo.
They lived in the town dump, got into scrapes, and Wordsworth wore a Walkman and rapped everything he said. What's fucking with that? Oh, and, also, this is just a personal theory, but Hector and Mungo were the inspiration for the Plutonians from Adult Swim's Spacecataz.
See? Amaze your friends with that little tidbit.