Gone With the Wind:

Scarlet O'Hara: ScarletHarlot. Fiddle dee-dee.

Rhett Butler: Marlfoxprince. One of these days is going to realize that he doesn't give a damn. :)

Ashly Wilkes: Harry Paget Flashman. Noble nature, and probably would have fought for the Confederacy given the chance.

Melanie Wilkes: Sisserydoo. Most likely to have a heavenly choir at her deathbed.

Mammy: Maneki Necko. Gave me permission to call her that.

The Carpetbagger: WinterGnat. Damned Yankees.