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 characters
""Mort"", short for Mortimer, is the title character in "Mort". He is first seen as the overly thoughtful son of a farmer in the Octarine Grass Country, near the Ramtops. Having proved himself unworthy as a scarecrow he is chosen by Death to be his apprentice. Mort is described as being very tall and skinny, with muscles like knots in string. He has a shock of bright red hair, and walks as if he is made entirely of knees.