Who’s That on Star Wars Tales #17 Cover?
© Dark Horse Comics
This picture was featured in my previous post on the Star Wars wallpapers from Dark Horse Comics but after finding a high resolution (1024×1559) scan of the cover of Star Wars Tales #17 at Wookieepedia - The Star Wars Wiki from which this wallpaper was created from, I was pretty much inclined to find out the identity of the bottom character, partially cut off in the wallpaper from Dark Horse Comics below.
© Dark Horse Comics
Four of the seven characters are easily recognized - even for a non-Star Wars fan like me 
: Darth Tyranus / Count Dooku, Darth Vader, Darth Sidious and Darth Maul but the other three are much less familiar.
Originally, I had given up finding the names of the other characters until Kenny of The Mediation Chamber came along and identified the Dark Jedi below Count Dooku as Assaj Ventress, a character from the Star Wars Expanded Universe. Yes, I know my knowledge of Star Wars canon sucks 
The next day after a few hours of trawling through Wookiepedia, Wikipedia and miscellaneous pages on the .NET, I finally identified the one below Darth Sidious as a Nightsister Sith Witch.
My current obsession is to find the name of the final character in the picture… still searching the .NET without much success. Two of my guesses - Saato, a Nightsister Dark Acolyte with a somewhat similiar forehead tattoo or Aidus, a Rattataki warrior under Assaj Ventress (no image available on Wookiepedia)
I will update this post again once I find his/her name - if I can find out, that is 
This has been bugging me too.
Hopefully someone can enlighten us. I’m quite convinced the fella is a Rattataki.
The only other Rattataki I found on the Web is Aidus mentioned Star Wars: Republic - Hate and Fear (issue 60). No illustration so we may never find out … unless we get that particular comic somewhere :p
I’ve enlisted the help of Star Wars fans from SgCollect by posting the permalink of this post in the forums.
Hopefully one of them can identify our mystery character.
Hey Kenny, thanks a lot!
I’ll still keep a look out for this character, pretty hard to find info on EU characters on the .NET unless you’re a avid collector of the comics I guess.
I came here wondering the exact same thing. The thought comes to mind “what if the mysterious sith has no name, or is in some way fictional.” (as in a filler for the poster). What then? Wouldn’t someone have to name him?
And is it possible to find out the creator of the poster and ask him?
Same here - I’ve already given up for good though. The illustrators are from the UDON collective though I’m not too sure of the exact artist(s) involved for this cover art.