A creature in the excellent comic book The Maxx by Sam Kieth. The comic deals with different worlds that seem to be the sub-conscience (or outback) of the various characters. The Is live in the Maxx's outback. The evil Mr. Gone finds a way to not only run around in other people's outbacks, but to also bring the Is into the "real world". The Is are white in the outback but turn more evil and black when brought into our world. Also, the plural of Is is Isz, which according to Sam should rhyme with whiz.