Louise

In Twilight Princess, Louise is Telma's cat that is usually found in Telma's Bar. When Link has to hurridly get the ill Midna to Princess Zelda, Louise shows Wolf Link a hidden way through the sewers and Telma's Bar to get to Hyrule Castle. She also gives Link information about the skeletal dogs that stole Ilia's wooden statue, after Louise herself stole it from Dr. Borville's office. Whenever Link confronts her in human form, she mews in a way that shows Link that she knows that he is also the wolf that she had helped. She is popular with the other cats in Castle Town for her knowledge of everything that's happening.