Growltiger is a fictional character appearing in both T. S. Eliot's Old Possum's Book of Practical Cats and Andrew Lloyd Webber's musical Cats which is based on Eliot's book. He is described as a "bravo cat who lived upon a barge", one who scoured the Thames from Gravesend to Oxford, terrorizing the inhabitants along the river, including "cottagers", canaries, geese, hens, "pampered Pekinese", and the "bristly Bandicoot that lurks on foreign ships". Growltiger is usually envisioned as a pirate, although he is never explicitly described as such. He has lost one eye, and one of his ears is "somewhat missing" after an incident involving a Siamese cat.