 Jill Valentine appears in several novels based on the Resident Evil series, particularly those penned by S. D. Perry. In his 1998 novel Resident Evil: The Umbrella Conspiracy, Jill is said to be the daughter of professional thief Dick Valentine, as well as his accomplice prior to her career in law enforcement (in apparent conflict with her supposed Delta Force background), explaining her unrivaled infiltration skills and "mastery of unlocking." Jill also appears in several comic books based on the game series, including the WildStorm 1990s series Resident Evil, the 1996 Marvel Comics one shot Resident Evil, and the 2011 comic Marvel vs. Capcom: Fate of Two Worlds.
