Let's start with Disney cats...
"Everybody wants to be a cat
Because a cat's the only cat
Who knows where it's at
Everybody's pickin' up on that feline beat
Cause everything else is obsolete."

Figaro (Pinocchio), Disney's first
Bruno (Cinderella)
Oliver (Oliver and Company)
Si and Am (Lady and the Tramp)
The Aristocats - Thomas O'Malley, Duchess, Toulouse, Marie and Berlioz
T-I-double G-E-R

T.S. Eliot, Old Possum's Book of Practical Cats
The Rum Tum Tugger, Mungojerrie and Rumpleteazer, Grizabella, Asparagus the theatre cat, magical Mr. Mistoffelees

Ernie and Willie, Socks, Cleo and Sara, Misty Malarky Ying Yang - cats who lived in the White House

Aslan, "The Lion, the Witch and the Wardrobe"
Nala and Simba
The M.G.M. lion