Tabby is Donald's cat and he appeared for the first time in the classic story "The Health Nut" by Dick Kinney and Al Hubbard, where Fethry Duck also made his first appearance in comics. Actually Tabby has always disliked Fethry, something that was quite explored in many American and Brazilian comic stories starring Donald and Fethry. Tabby really likes his owner, Donald, but this doesn't refrain him from trying to catch a fish who lives in Donald's fishbowl.