Cats are frequent characters in many classic cartoons; here are some examples:
Tom and Jerry: Tom and Jerry are the main characters in this classic cartoon. They are sworn enemies. Tom is a blue cat and Jerry is a brown mouse.

Garfield: This is a comedy animation starring Garfield, a fat yellow cat who loves to eat, sleep and play pranks.
Doraemon, also known as "Doraemon," is a very popular Japanese anime. The main character is a blue robot cat with a magic pocket that can produce various gadgets to help its owner.
Black Cat Detective: This is a classic Chinese animation that tells the story of Black Cat Detective leading his officers to fight crime. Black Cat Detective is a black cat with a strong sense of justice.
The Cat Returns: This is an animated film directed by Hayao Miyazaki, which tells the story of an ordinary kitten who saves a girl, and the girl transforms into a cat to repay the kindness.
The cat characters in these anime are all unique and beloved by audiences.