Twisp is a blond, anthropomorphic cat that stands up on his hind legs. He wears a black suit with an undershirt and buttoned top underneath. He has a dotted tie to go with the suit. To add to his rich nature, he has a top hat and a monocle. He has been described as a "businesscat."
Twisp appears, at first, to have a weak grasp on the English language compared to Catsby. He often speaks in one-word sentences, much like Fujin from Final Fantasy VIII. However, these single words are always appropriate for the moment, and are usually polysyllabic.
They once had tea with the moon.