Name	Role	Affiliation	Condition
[80+]  Lady Alistra	Death Knight trainer in Acherus: The Ebon Hold	Knights of the Ebon Blade	Alive
[80+]  Darkrider Arly	Quest giver in Blackwatch, Icecrown	Knights of the Ebon Blade	Alive
[??]  Attumen the Huntsman (presumed)	Found in Karazhan with his horse Midnight	none	Killable
[60]  Alexei Barov	Mini-boss of Scholomance	Scourge	Killable
[58+]  Marduk Blackpool	Mini-boss of Scholomance	Scourge	Killable
[??]  Lady Blaumeux	One of the Four Horsemen in the Military Quarter of Naxxramas	Scourge	Killable
[73]  Orbaz Bloodbane	Servant of the Lich King	Scourge	Killable
[80]  Rokir	The Rider of the Unholy	Scourge	Killable
[80]  Sapph	The Rider of Frost	Scourge	Killable
[80]  Baelok	The Rider of Blood	Scourge	Killable
[80]  Gjonner the Merciless	Arena master of Valhalas	Scourge	Alive
[62+]  Darkreaver	Found in Scholomance	Scourge	Killable
[57]  Lord Darkscythe	Rare mob in Eastern Plaguelands	Scourge	Killable
[75]  Bloodrose Datura	Quest giver in the Ebon Watch, Zul'Drak	Knights of the Ebon Blade	Alive
[??]  Falric	Served as Arthas' Captain during the Third War	Formerly Alliance of Lordaeron, Currently the Scourge	Unknown
[80]  Koltira Deathweaver	First Death Knight to join the Horde. Found on Orgrim's Hammer.	Horde	Alive
[??]  Margrave Dhakar	Commands troops in the Fleshwerks, Icecrown	Knights of the Ebon Blade	Alive
[??]  Ebon Watcher	Quest giver in the Valley of Echoes, Icecrown	Knights of the Ebon Blade	Alive
[??]  Teron Gorefiend	Found in Shadowmoon Valley and the Black Temple	Illidari	Killable
[70+]  Headless Horseman	Found in the Scarlet Monastery's graveyard, serves himself	none	Killable
[60]  Ilifar	Found in the Blasted Lands, serves Razelikh	Burning Legion	Killable
[??]  Jayde	Fights the Scourge in Scourgeholme, Icecrown	Knights of the Ebon Blade	Alive
[??]  Thane Korth'azz	One of the Four Horsemen in the Military Quarter of Naxxramas	Scourge	Killable
[72+]  Luthion the Vile	Lieutenant of Prince Valanar in Naxxanar, Borean Tundra	Scourge	Killable
[??]  Marwyn	Served as Arthas' Captain during the Third War	Formerly Alliance of Lordaeron, Currently the Scourge	Unknown
[??]  Arthas Menethil	Became Lich King	Scourge	Alive
[??]  Darion Mograine	Leader of the Knights of the Ebon Blade	Knights of the Ebon Blade	Alive
[??]  Alexandros Mograine	Formerly Highlord of the Scarlet Crusade and one of the Four Horsemen	Unknown	Killable
[??]  Munch	Fights the Scourge in Scourgeholme, Icecrown	Knights of the Ebon Blade	Alive
[80]  Duchess Mynx	Ebon Blade quartermaster	Knights of the Ebon Blade	Alive
[56]  Knight Commander Plaguefist	Quest giver in the Chapel of the Crimson Flame, Eastern Plaguelands	Scourge	Alive
[??]  Ragnok	Recovered the Jeweled Scepter of Sargeras in the Broken Isles	Horde of Draenor	Unknown
[??]  Instructor Razuvious	Found in the Death Knight Wing of Naxxramas	Scourge	Killable
[??]  Baron Rivendare	One of the Four Horsemen in the Military Quarter of Naxxramas	Scourge	Killable
[80+]  Salanar the Horseman	Quest giver in Death's Breach, Eastern Plaguelands	Scourge	Alive
[80+]  Siouxsie the Banshee	Quest giver in Acherus: The Ebon Hold	Knights of the Ebon Blade	Alive
[??]  Gaz Soulripper	Ner'zhul placed him in charge of matters on the Dark Portal, Azeroth side	Horde of Draenor	Deceased
[80+]  Scourge Commander Thalanor	Quest giver in Acherus: The Ebon Hold	Scourge	Alive
[72]  Thassarian	First Alliance death knight in Acherus: The Ebon Hold	Alliance	Alive
[80+]  Lord Thorval	Death knight trainer in Acherus: The Ebon Hold	Scourge	Alive
[75]  Stefan Vadu	Quest giver in Ebon Watch, Zul'Drak	Knights of the Ebon Blade	Alive
[73]  Duke Vallenhal	Killed Dahlia Suntouch at the Ruby Dragonshrine, Dragonblight	Scourge	Killable
[72+]  Vanthryn the Merciless	Lieutenant of Prince Valanar in Naxxanar, Borean Tundra	Scourge	Killable
[??]  Sir Zeliek	One of the Four Horsemen in the Military Quarter of Naxxramas	Scourge	Killable
[80]  General Lightsbane	Oversees the Shadow Vault	Scourge	Killable

Others

Lord Nightsorrow, Lord Soulrender, Lord Dethstorm, Lord Maldazzar, Lord Darkhallow, Lord Lightstalker, Baron Bloodbane, Baron Felblade, Duke Dreadmoore, Duke Ragereaver, Baron Frostfel, Baron Perenolde, Duke Wintermaul, Baron Morte.

Note: Many of these names represent random heroes in Warcraft III.