Typhoid Mary Fisk, also known as Bloody Mary and Mutant Zero, is a supervillain appearing in American comic books published by Marvel Comics. The character was initially depicted as an enemy of Daredevil suffering from dissociative identity disorder, but has also come into conflict with Spider-Man and Deadpool, ultimately marrying the crime boss the Kingpin, as his second wife.

Ann "Annie" Nocenti is an American journalist, filmmaker, teacher, comic book writer and editor. She is best known for her work at Marvel in the late 1980s, particularly a four-year stint as the editor of Uncanny X-Men and The New Mutants as well as her run as a writer of Daredevil, illustrated primarily by John Romita Jr. Nocenti has co-created such Marvel characters as Longshot, Mojo, Spiral, Blackheart and Typhoid Mary.