What cartoon character had a on Olivia de Haviland?

This is a bit of a trick question! There is no cartoon character that has a son named Olivia de Haviland.

Olivia de Haviland was a real-life actress, famous for her roles in classic films like "Gone with the Wind" and "The Adventures of Robin Hood."

It's possible you're thinking of a different actress or a fictional character altogether.