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Harry Dread
From Discworld & Pratchett Wiki
A Dark Lord, but not one with the budget or following to rule the deep dark dungeons under Thangorodrim or Barad-Dur. In fact, Evil Harry Dread is more of your "bargain-basement" Dark Lord.
He respects the Code, he takes care to recruit suitably stupid sidekicks, and his relationship to a barbarian hero is therefore as subtly nuanced as that between a God and a demon. (This has been described as being like that between a terrorist and a freedom fighter).
He is one of only three members of the original party who definitively survive the Silver Horde's assault on Dunmanifestin. He, the Minstrel, and Vena the Raven-Haired witness the end of the Last Heroes, and all are left with the knowledge that the day of the barbarian hero on the Disc is all but done - the world no longer has the time and space for them.
Annotations
Evil Harry's name resonates with the film character Dirty Harry.
His Evil Overlord status and references to the Code are also reminiscent of the now-famous Evil Overlord List, a guide for aspiring Evil Overlords which comprises rules designed to prevent the overlord from falling into clichéd movie traps - an example from the list being:
"I will instruct my Legions of Terror to attack the hero en masse, instead of standing around waiting while members break off and attack one or two at a time."
Contrastingly, Evil Harry seems to follow a Code which adheres him to these movie clichés - e.g. his very stupid henchmen.

