[hider=Saren Arterius]
(Mass Effect 1 spoilers)
[center] [img] http://vignette1.wikia.nocookie.net/masseffect/images/b/b5/SS6.jpg/revision/latest?cb=20101214003523 [/img] [/center]
Name: Saren Arterius
Age: 44 (at his final appearance before death, turians have approximately human lifespans)
Gender: Male
Bio: Saren Arterius is a famous member of the Spectres. No turian has served with the Spectres longer, and he is considered the best of them (Spectres are an elite group working for the Council. No laws apply to them, they have free reign to anything they like, in order to defend galactic peace and safety). Even by Spectre standards, a lot of Saren's work was kept secret. There were many rumours involving his methods, but his results were undeniable. During the First Contact War, between humans and turians, Saren's brother was killed. This, combined with agressive human expansion after the war, resulted in Saren developing a strong hatred for humans. Despite his ruthless efficiency, he does follow two principles. The first is "Never kill anyone without a good reason". The second is "You can always find a good reason to kill someone". 
There is a period in Saren's life which is very ambiguous - very little is known about his actions during this time. However, it is known that at some point, he discovered the reaper Sovereign, a machine-like intelligence of incredible scale. He had initially planned to use Soveriegn as a weapon. He thought it could control the geth - a synthetic hive-mind with impressive technology - to destroy the humans. However, when he discovered Sovereign, it showed him what it and the other reapers had done to thousands of galactic civilisations which are now little more than a handful of ruined buildings on a smaller number of planets. Saren saw that even if the galaxy's races could be united, they wouldn't be able to fight the reapers. He believed that the only way to survive was to follow the reapers, that servitude, though unfortunate, would be preferable to destruction. Sovereign disagreed.
Despite Saren's formiddable willpower, he soon became a slave of Sovereign. Unbeknownst to him, reapers are capable of gradually indoctrinating those who spend too long in their presence. Saren became both Sovereign's most useful agent and a face to lie its crimes on when they were discovered - everyone was convinced Saren was the true threat. Saren, leading the geth, made attacks on various locations throughout the galaxy, often being disrupted by the Human Alliance soldier and only human Spectre, Commander Shepard. These attacks eventually culminated at the Citadel, the center of Council power. Shepard confronted Saren a final time, either engaging the turian and killing him, or convincing Saren to kill himself, either way preventing Saren from opening the doors to a full reaper invasion.
Feats of strength: Saren's left arm is actually a grafted geth arm. With just this arm, he is capable of lifting a fully armed and armoured adult human, as he does to Shepard on Virmire. 40
Feats of agility: Saren has impressive reactions and is able to sprint effectively while carrying large amounts of gear. 50
Feats of toughness: Sovereign has bonded large amounts of metal (the type is unclear, but is clearly very strong) to Saren's skeleton. This considerably improves on his natural turian toughness (which was already a good start). He is also equipped with a high-grade kinetic barrier. This functions similarly to a typical "energy shield", but is ineffective against melee attacks. 40
Feats of intelligence: Saren is hardly academic, but his resourefulness and skill in battle tactics are significant. 30
Feats of willpower: Saren managed to overcome the full might of Soveriegn for a few seconds, just long enough to kill himself. While this was brief, the fact that it happened alone is more than most could achieve. 30
Feats of luck: Saren has performed no feats of luck. In fact, he is so ruthless and efficient that luck very rarely has a role in anything he does. However, he was phenomenally unlucky when he first discovered Sovereign. He spent the rest of his life a slave for it. 30
Feats of perception: Saren possesses excellent aim with most forms of firearm. Though he is not comparable to a skilled sniper, he rarely misses at medium range, and if anyone misses at close range they're either very inexperienced or doing it wrong. 50
Gear: Specter-grade (typically the highest-quality, non-prototype gear available. Spectres have very good funding) pistol, assault rifle, armour, hoverboard (don't know the technical name) and kinetic barriers. 
Universe of Origin: Mass Effect
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[center] [url=https://www.youtube.com/watch?v=jFIhsiqw2ac] Saren's death [/url] [/center]