A cat is a small furry, and carnivorous mammal that are usually kept as pets.

In 1692, Gurdy McGoo and her cat were executed by the townsfolk.

In 1986, Edna Strickland owned a cat named Miss Pretty Whiskers. Her cat was known for getting angered easily when someone other than Edna herself handled her food. She also had cat shaped trophies from Cat Lovers Quarterly.

It was unknown if she owned any cats in 1986C, though shortly after her breakup with Emmett Brown, she contemplated getting a cat in 1931.

In 1991, Einstein suffered a case of cat-aracts which cause him to see anyone as a cat, requiring Doc and Marty to retrieve a cure in January 18, 1927.