Earl (Rocko's Modern Life)

Earl is a large, mean-looking, purple mutt who looks something like a bulldog. He has yellow eyes, red rocker punk hair and large lower teeth that protrude from his mouth and wears a spiked dog collar. He was initially homeless, and is occasionally locked up at Dr. HP Marten's Institute for Questionable Experiments, due to his viciousness. Earl enjoys mauling Rocko, Ed Bighead, the fly man, and basically anything else that is alive. He was adopted by Bev Bighead in the second season after his "fairy dogmother" frees him from Martens' lab; Ed hates him and Earl in turn, hates Ed but is loving towards Bev.