A quite minor character, but she appeared in at least 5 shorts, so she meets the requirements to be talked about.
In her first appearance she was actually billed as the next “star.” That never worked out too well. While usually labeled as Porky’s girlfriend, she was actually quite horrid to him in her first appearances. (Heck, she was once his sister/cousin!) Also, she went through a huge makeover. At first she looked like a skinny Porky with blush on. Ew. Eventually Clampett redesigned her into that second image above. Cute, eh?
By this point, she and Porky were a great couple. She never did go on to have the same fame, but she did live on as “Looney Tunes Comics”, “Baby Looney Tunes” and “The Looney Tunes Show” suggest. (I just heard that last one was cancelled. The good and misunderstood die too young.)