Unidentified Human Sith
From Wookieepedia, the Star Wars wiki.
Members of Darth Krayt's One Sith, numerous Human Sith were among the Sith led by Darth Nihl in the Massacre at Ossus in 130 ABY, purging the Jedi Praxeum on Ossus and scattering the New Jedi Order. Two Humans (male and female) partook in the initial showdown between the Sith and Kol Skywalker and Wolf Sazen. Three more Humans (two male, one female) joined after Master Sazen was cut down. It is most probable that they were all killed or severely wounded by Kol Skywalker before the end of the battle, including decapitation and reflection of Force lightning.
More Human Sith were among the dead piled up by Kol Skywalker, bringing the count to possibly six or seven. Two more had been killed by Shado Vao and Cade Skywalker.
In 137 ABY, two more Human Sith (male and female) ambushed four Jedi, including Wolf Sazen, Shado Vao, Rasi Tuum, and a female Jedi, on the planet Daluuj. They were also the first Sith to die, at the hands of Wolf and Shado.
Later, at the Battle of Vendaxa, at least eight Human Sith made an appearance with Darth Nihl's ground forces, and at least one of these Sith was killed.
Another Human Sith was present during the Massacre of Mon Calamari alongside the more prominent Darth Krayt and Darth Azard.

