This is a work in progress, but I wanted to get something up. I will update this post as I get more done. The character is a kel dor who focuses on force powers rather than lightsaber combat. My thought on his "brand of evil" is
Menace but I'll leave the name to you Shaggy.
I have purposely avoided using his name because I don't think he will even acknowledge his none Sith name, to him that is his true and only name. If you like I can give him a name beyond the Sith one you pick out but for now I'll keep as is.
[sblock=Background]He began his jedi training once he was an adult. He never quite took to the jedi tradition or its teachings. He favoured using his powers to overwhelm his opponents rather than use his lightsaber and he was far too free with his use of those powers. The jedi teach that one is never to use the force to harm another, yet he found he was loved using his powers to lord over others, loved causing mayhem and destruction with his powers. Their was one master who greatly disapproved of him and tried to have him expelled during the earliest stages of his training, but failed. When it came time for him to be assigned to a single master for training, the master who disapproved of him insisted on being his instructor.
This master was very hard on him, constantly scolding and lecturing him. When his tendacies to abuse his powers only got worse, the master again tried to have him expelled. Finally, he went too far. They had captured a suspected Sith traitor and well the master was busy looking in to prisoner's records, he decided to "interrogate" the suspected spy. He used his powers in terrible ways to torture the prisoner, eventually killing him bu having extracted a signed confession.
The master was furious when he figured out what had been done. It turns out that the masters's research had proven that the prisoner was innocent (having only confessed in desperation to end the torture). The master was furious and demanded that he surrender immediately for trial by the jedi. He refused and the argument became quite heated, to the point that the master drew his lightsaber and threaten to strike him down if he did not surrender. He struck out with force lightning for the first time but the master was to powerful and rebuked the attack back at him. Laid low by his own powers he was taken and tried by the jedi who quickly found him guilty and expelled him from the order (taking his lightsaber) and exiling him from known space.
The master was enraged that he had not been sentenced to death and screamed insisting that his padawan be executed. The council was shocked at the outburst, realizing that in his hatred for his aprentice the master had lost himself to negative emotions and to the darkside. The master too as expelled from the order until such time as he again found his way back to the lightside. Both the master and the apprentice left the order and the jedi have not heard from either since.
An exile, he threw in with a mercenary outfit setting out to the outer rim. He spent the next few years as a mercenary, learning to fight as part of a military squad and traveling the rim worlds and even a few planets beyond the outer rim. Until on a nasty little backwater of a planet he met the woman who would set him on his path. She was a Sith of the New Order, looking for cutthroat mercenaries to recruit as assassins and soldiers. She recognized his powers immediately and set about turning him fully to the darkside. She started by suducing him and then using that sexual influence to push him into more and more depraved act. It really wasn't that difficult, he was bitter, cruel and vindictive already, with a delight in dominating others with his powers. She just fed into those emotions. Soon she was teaching him in the ways of the Sith. The day she guided him in making his own lightsaber, her work was complete and he was reborn as a full apprentice of the Sith. She gave him a new, customized a set of armour and a new name ...[/sblock]
[sblock=Descripton]Coming soon ...[/sblock]
[sblock=Stats]
Darth ???
Male kel dor Scout 1 / Jedi 3 / Soldier 3 / Sith Apprentice 2
Force 10;
Destiny ??
Init +12;
Senses low-light vision; Perception +13
Languages Basic, Kel Dor
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Defenses Ref 27 (flat-footed 24), Fort 24, Will 25
HP 30+d10*6+d12*2, delay damage;
Threshold ??
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Speed 6 squares (walking)
Melee lightsaber +12 (2d8+3)
Ranged ??
Fighting Space 1 square;
Reach 1 square
Base Atk +8;
Grp +7
Atk Options Force Powers
Special Actions Block, Deflect, Recover Force Point
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Abilities Str 8, Dex 16, Con 10, Int 10, Wis 18, Cha 18
Talents Armored Defense, Block, Deflect, Evasion, Improved Armored Defense, Second Skin
Feats Armour Proficiency (light)
, Force Sensitive, Force training (x3), Skill Focus (Use the Force), Weapon Finesse, Weapon Proficiency (lightsabers, pistols, rifles, simple)
Skills Endurance +9, Initiative +12, Perception +13, Stealth +12, Use the Force +18
Force Powers Force Grip (2), Force Lightning (2), Force Slam, Mind Trick (2), Move Object (4), Negate Energy, Rebuke, Surge (2)
Possessions Lightsaber, Armoured Flight Suit, ????????
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[sblock=Breakdown][/sblock]
You are totally right, of course! 
