Jonesy The Cat

Jonesy, also referred to as 'that damn cat ' by officers who are allergic to the little guy, is a cat kept aboard the USS Serenity. The cat's official purpose is to control rodents aboard the ship, but being a cat, he is incompetent and doesn't realise that. Due to this, he spends most of his time hiding to the point where some people aboard the Serenity question if he even exists.

Some say that Jonesy is not actually a cat, but is instead a small bilingual dog that looks like a cat, and speaks like a cat. This is, of course, false.