More Comic Book Details on Wonder Woman's Nemesis

The character of Veronica Cale was introduced in the November 2003, #196 issue of Wonder Woman.

Superman has Lex Luther as his chief nemesis, Wonder Woman has Veronica Cale.

The co-founder of Cale-Anderson Pharmaceuticals, Cale resents Wonder Woman's message of peace and acceptance in man's world. She event went as far as turn the media against Wonder Woman, allying herself with Doctor Psycho and Circe.

ComicVine.com and wikipedia has more background info on the character.