4. Ed and 5. Bev Bighead, "Rocko's Modern Life"
These creeps were too much. Ed was a hothead and Bev was his salacious frog wife, and I swear they were even more unnerving than the lives of Rocko, Filbert, and Heifer put together. People forget that Rocko's Modern Life was often a very straightforward commentary on contemporary urban woes (Remember the episode about the dangers of credit?), but Ed and Bev kept the proceedings traditionally weird.