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)
In the Cosgrove Hall Films animation of "Soul Music", Mort is voiced by Neil Morrissey. In 2004 BBC Radio 4 adapted "Mort", with the title character voiced by Carl Prekopp and Ysabell being voiced by Clare Corbett. Mort is included in Wayne Barlowe's "Barlowe's Guide to Fantasy".