Bill the Cat is a fictional character created by cartoonist Berkeley Breathed. Bill is a large orange tabby cat, first introduced in 1982 as a parody of the comic character Garfield. Bill has appeared in Breathed’s 1980s comic strip Bloom County as well as the two “sequel” strips (Outland and Opus), his illustrated children’s books and the 1991 television special A Wish for Wings That Work. The cat’s most frequent spoken sentiments are “Ack!” and “Thbbft!” Numerous strips indicate that Bill’s persistent near-catatonic state is the result of drug use or brain damage resulting from once being legally dead and then revived after too long of a period.
Note: About a week ago, Berkeley Breathed starting posting new Bloom County comics, after over 25 years. I was a 10-year-old when the strip ended.