Ademtus
Admetus is a beige/light brown-colored chorus cat. He's not very important, but he is a very good dancer.

 friendly, easygoing, protective

Alonzo
Alonzo is a black and white tom cat. He doesn't have many singing parts, but is shown to be a very good dancer. He is also a very good friend of Munkustrap, even though he is in some productions Demeter's mate, which is usually Munkustrap.
  vain, uncertain, bravado

Cassandra
Cassandra is a brown abyssinian or siamese queen cat. Her coat is very thin and brown. She is a very strong dancer and appears to be very mysterious.

 haughty, disdainful, aloof

Coricopat and Tantomile
Coricopat is the twin-brother of Tantomile. He and his sister are mysterious and a even little bit creepy. They might have magical powers and always move synchronous. Their coats are black and white, with some blueish and gray parts.

 telepathic, unruffled, instinctive/telepathic, suspicious, sensitive

Electra
Electra is a queen kitten with a red and black coat. She only appears in very few productions. She is a fan of the Rum Tum Tugger and the best friend (or the sister) of Etcetera.

 adolescent, inquisitive, daring

Etcetera
Etcetera is a very euphoric and wild queen kitten. Her coat is of a very light color with light brown and orange stripes. She is the best friend (or sister) of Electra and the greatest fan of the Rum Tum Tugger. Etctetera only appeard in the London production and the CATS film, where she has the biggest screaming part in "The Rum Tum Tugger", after which she fainted. This part is played by Rumpelteazer or Electra in other productions.

Exotica
Exotica only appears in the film version of CATS and in the Swedish production. She is a very shy dark brown queen and only appears as a chorus cat.

George and Victor
George and Victor only appeared in the Original London Production of CATS. They were chorus cats.

Plato
Plato is a young tom cat. His fur is light-brown, beige and white and he is a strong dancer.

 friendly, easygoing, protective

Pouncival/Carbucketty
Pouncival is a white and brown tim kitten. He is playful and cheeky, but not very important. His London name was Carbucketty. Some people consider them to be different characters.

 acrobatic, energetic, accident-prone

Tumblebrutus/Bill Bailey
A brown and white tom kitten with strong dancing parts.

 chaotic, imprudent, funny