Heffer is a character from the animated television series Rocko's Modern Life. He is a large, anthropomorphic cow and one of the main characters in the show. Heffer is known for his cheerful personality, love of food, and carefree attitude. He often provides comic relief and is a loyal friend to the protagonist, Rocko. In the series, Heffer was adopted by a family of wolves, which contributes to his humorous and sometimes naive outlook on life. His character often finds himself in absurd situations, reflecting the show's satirical take on modern life and societal norms.