Pretty sure "Kitka" and "Minerva" were fake names and not presented as Catwomans actual identity.
"White" and "Persian" are not mutually exclusive.
Romero was the weakest bit of casting of the four main Batman villians. Gorshin, Meredith and Newmar were about as close to perfect as you can get.
IIRC, Spawn, Steel and War-Machine are all black comic book heroes who have made the leap from comics to the big screen more or less intact. (YMMV)