Coltrane (a.k.a. Snowball IV) was the Simpsons' fourth cat. He bore a slight resemblance to Bart.
History
Lisa adopted Coltrane from an animal shelter shortly after the death of Snowball III. Originally, Lisa was not sure whether she wanted another cat. However, she was won over by his original name (Coltrane).
Gallery
Coltrane's cardboard grave.
