San'layn

The Darkfallen are a unique form of undead that were in the direct service of the Undead Scourge up until the Northrend Campaign. Originally Blood Elves loyal to Prince Kael'thas Sunstrider, they were raised into undeath by the Lich King following their daring, but futile assault on the Frozen Throne under the command of both Kael'thas and Illidan Stormrage.

They are by far the most 'complete' of all the undead forces that are known in Azeroth. While the majority of the undead, either at the command of necromancers of former scourge lords show extensive amounts of decay and disfigurement, the Darkfallen for the most part have retained their elven form. They are not however exact copies of their still-living kin as there are several notable changes that make them stand out from among other elves most notably the skin and the eyes. While almost all elves are universally pale, the skin of the Darkfallen has many different pigments to it, ranging from an almost human pink to gray and even light green. Likewise the eyes of the Darkfallen also have different shades to them, as well as glows that can be found in their still living Quel'dorei and Sin'dorei kin. The most common shades of Darkfallen eyes are white, green, blue and black although that is by no means a definite list, as the color of the Darkfallen eyes can shift much like the eye color of their living kin.

As far as military strength and organization is concerned, once more the Darkfallen appear to be the superior force compared to other scourge forces. Organized into a faction of their own known as the San'layn many of the Darkfallen retain the discipline and skills they had in life making them formidable soldiers and spellcasters. Until the end of the Northrend Campaign they were also lead by a very dedicated and powerful group of San'layn known as the Blood Prince Council who in turn were lead by the true leader of the Darkfallen, Blood-Queen Lana'thel. During the Northrend Campaign and the subsequent invasion of Icecrown Citadel by Azerothian Heroes and the Ashen Verdict the majority of the San'layn, who stationed themselves within the Blood Halls of the Citadel were slain, along with three of the Blood Prince Council and the Blood-Queen herself. This has left the remaining San'layn leaderless, although there are rumors that a few of the Blood Princes did survive the Northrend Campaign and remain at large although like many other Scourge generals who survived the Campaign they are mercilessly hunted by the Argent Crusade and the Knights of the Ebon Blade.

Known San'layn

 * Blood-Queen Lana'thel: Ultimate leader of the San'layn, she was killed during the Northrend Campaign by the Ashen Verdict and Azerothian Heroes.
 * Prince Taldaram: One of the Blood Prince Council members who was slain by Azerothian Heroes within the subterranian city of Azjol-Nerub. His body was recovered by agents of the Scourge and he was resurrected to fight in the battle for Icecrown Citadel where he was slain once again.
 * Prince Keleseth: One of the Blood Prince Council members who was slain by Azerothian Heroes within the halls of Utgarde Keep. His body was recovered by agents of the Scourge and he was resurrected to fight in the battle for Icecrown Citadel where he was slain once again.
 * Prince Valanar: One of the Blood Prince Council members who was slain by Azerothian Heroes and the Death Knight Thassarian atop the Dread Citadel Naxxanar. His body was recovered by agents of the Scourge and he was resurrected to fight in the battle for Icecrown Citadel where he was slain once again.
 * Prince Tenris Mirkblood: One of the Blood Prince Council and the first of the Blood Princes to be encountered, Prince Tenris took up residence within the cursed tower of Karazhan as the Scourge assaulted various areas of the Eastern Kingdoms and Kalimdor. He was hunted down and killed by Azerothian Heroes.
 * Prince Sandoval: One of the Blood Prince Council, he observed the battle ring in Valhalas. When a group of Azerothian Heroes challenged the finest champions that the Scourge had to offer and won, Prince Sandoval engaged the heroes in an attempt to crush them for their insult to the Lich King. Underestimating the power of the heroes he faced, he was slain and left to rot in the ring.
 * Prince Navarius: One of the Blood Prince Council and a notable fleshcrafter. He created the flesh titan Thrym and created many other abominations within the ruins of the troll empire of Zul'drak. He was slain by the Storm King Gymer after Azerothian Heroes released him from his cage.
 * Prince Atherann: One of the Blood Prince Council. He aided the Blood Princes when they resurrected Arugal in Silverpine Forest and instructed him to raise a wolfcult within the area known as the Grizzly Hills. Despite being a Blood Prince of great authority he did not fight in the Northrend Campaign and his current whereabouts are unknown.
 * Prince Theraldis: One of the Blood Prince Council. He lead the Blood Princes when they resurrected Arugal in Silverpine Forest and instructed him to raise a wolfcult within the area known as the Grizzly Hills. Like Prince Atherann, he did not fight in the Northrend Campaign and his current whereabouts are unknown.