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 (Discworld)
The initial books did not pronounce themselves about the sex of Death, although Ysabell called him 'Daddy', using the pronoun "it". In "Mort" Death's pronoun is given as "he" and "his" without the special capital as in the earlier books. In "Reaper Man", Death is unambiguously identified as a male, and in "Soul Music" and "Hogfather" Susan calls him her grandfather or "Granddad". When asked to describe Death, in the second Discworld computer game, the protagonist Rincewind hazards a guess, "Well, I suppose he's a man. You have to look at the pelvis, don't you?" In the comic strip adaptation of "Mort", Death is seen in mirrors as a black-bearded human wearing a black cloak, a look he takes when he needs to be seen by the living.