Top Cat looks to Chooch as his second in command. The pink pussy-cat lives at the local Fire Station but is always ready to respond to Top Cat's dustbin lid bashing alerts. Choo-Choo is often left clueless as a kitten by Top Cat's crazy schemes, but goes along with them all the same. He knows Top Cat is the smartest cat in town, even if his plans always leave Choo-Choo being chased by Dibble!