Pre-crisis
Lex Luthor‘s niece and a criminal mastermind in her own right. Nasty’s first appearance is in “ADVENTURE COMICS vol 1 #397” in Sept 1970. She enrolls in Stanhope University to stalk Linda Danvers and expose her as Supergirl. She’s aided by her gang “Nasty’s Nasties” and her Uncle Lex. She is not the daughter of Lena (Luthor) Thorul-Colby. In the Super Fe-Mail section of “ADVENTURE COMICS #401”, Mike Sekowsky (editor) explains that ‘Nasty’ is the daughter of Lex’s older un-named sister, not his younger sister Lena Thorul-Colby. The older sister, like Lex, was disowned by Jules (Lionel) and Arlene Luthor as a teenager.
All Star Superman
She takes on a new Gothic look in this series.