Admetus, the young cat who also played the role of Macavity in many performances, was omitted in some performances. Bill Bailey, a young male cat, black and white. Also known as Tumblebrutus in various performances.

Bustopher Jones, a 25-pound fat cat, wears a formal tuxedo and is respected by everyone as the upper class of St. James Street. Coricopat, a female cat, and Tantomile are twins, and there seems to be telepathy between them.

Demeter is a very sensitive female cat. Some cat fans believe this is because he has a tragic past and may have had a relationship with Macavity. Good friends with Bombalurina.

"Cats" is the most successful play in the history of musicals and once became synonymous with musicals. In order to convey emotions, the directors did not hesitate to use a large number of dance scenes to express the different characteristics and personalities of the cats. There are both light and lively tap dance, solemn and gorgeous ballet, as well as dynamic jazz dance and modern dance.