Who is the first woman to win Oscar who played a role as cat?

There is no record of a woman winning an Oscar for playing a role as a cat. While many actors have played animal characters, the Oscar awards do not have a category specifically for such roles.

It's important to remember that the Oscars recognize achievements in acting, directing, writing, etc., and a performance as an animal character would fall under the category of acting.

If you're curious about the first woman to win an Oscar for a specific type of role, let me know, and I can help you find that information!