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:
Discworld gods
In the book "Hogfather", the Hogfather first appears in the manifestation of a wild boar. Death and his granddaughter Susan manage to save him, in order that the sun might rise in the morning. Without the Hogfather, according to Death, the Discworld would merely be "".