Death (Discworld)
Death has appeared in every Discworld novel, with the exception of "The Wee Free Men" and "Snuff", and had a possible cameo at the end of "Johnny and the Dead" (the character was not identified, but spoke in unquoted small caps). The Discworld books with Death as a leading character, starting with "Mort" in 1987, are:
Death (DC Comics)
Death has also made occasional appearances in the mainstream DC Universe. To the annoyance of Neil Gaiman, she appeared in "Captain Atom" #42-43 (June–July 1990), as merely "an aspect" of Death. Other Giffen stories that feature Death include the "Ambush Bug Nothing Special" one-shot (Sep 1992) and a cameo in the Lobo comic book "Lobo's Back" #3 (Oct. 1992), in which she slaps Lobo for getting fresh with her. She observes the destruction of the Earth in "Legion of Super-Heroes" vol. 4 #38 (Dec 1992). The character appeared in "Action Comics" #894, which was written by Paul Cornell. Cornell confirmed that Neil Gaiman has given his approval for the use of Death in the storyline. In the story, while searching for a black power ring, Lex Luthor encounters her. She appears again in issue #900 and in "The Flash" (vol. 3) #6, part of the "Brightest Day" crossover.