During early production on The Rescuers (1977),
Cruella De Vil was considered for the role of the villain. This idea was
quickly abandoned, as Disney was not interested in producing sequels at the
time, and Madame Medusa was created.
Shown above are some of Ken Anderson’s original Cruella De Vil concept drawings for The Rescuers. Note that Cruella has traded in her furs for alligator skins! (Via.)