Mehitabel is another favorite.
Absolutely!
Pixel (the fictional version) also has a role in Spider Robinson’s “Callahan’s Key”
Chaucer’s cat who:
"…weyveth milk and flessh and al,
And every deyntee that is in that hous,
Swich appetit he hath to ete a mous. "
Since most of page 3 are repeats, I’ll mention Nimitz (and the entire population) the treecat from the Honor Harrington SF series by David Weber.
Nimitz (also known as Laughs Brightly) does have six legs, is telempathic and is near-parity with human intelligence, and oh by the way lives on a planet 500 Light years away, but plays a major role in the life of Our Heroine throughout the series.
Since I don’t think it was mentioned ------ Tao from Incredible Journey.
Thanks for reminding me of this movie. I hadn’t thought about it in years. My mom took my brother and me to see it in the theater when I was six.
Pangur Ban, from the poem by an 9th century Irish Monk writen in the margin of a book he was working on … and more recently, from the animated movie The Book of Kells.
The poem (in English translation):
https://www.ling.upenn.edu/~beatrice/pangur-ban.html
A favorite scene from the animated movie:
Tony the Tiger (“They’re Grrrrreat!”)…
Grimalkin and Cat Sith from the Dresden Files…