Forum:KB:ST tales cover question

Hello, just have a little question. On the ST tales 17th issues's cover they shows most of the Sith lords. Still their is 2 of them that I didn't know and I'm curious to have their names and info's on them. the 1st one the the dudes just under Darth Maul. the 2nd one is the girl with white/black skin who looks lika a datomiri witches.

If some one can help me, thanks!