Lilith Clay, also known as Omen, is a superheroine appearing in American comic books published by DC Comics. Created by Robert Kanigher and Nick Cardy, Lilith made her first appearance in Teen Titans #25 and commonly appears as a member of the Teen Titans. She is depicted as the best friend of Donna Troy and the second hero to join the original Teen Titans after its founders, following Roy Harper. Although her origin and powers have varied significantly throughout her history, she is consistently seen as both precognitive and psychic.

Nicholas Viscardi, known professionally as Nick Cardy and Nick Cardi, was an American comics artist best known for his DC Comics work on Aquaman, the Teen Titans and other major characters. Cardy was inducted into the Will Eisner Comic Book Hall of Fame in 2005.