

Hints of social darwinism aside, he just loves violence, and relishes the idea of going up against Shepard. Blood Knight: He enlisted in the army at 16 using a false ID, only to be discharged for murdering a krogan the same year he was made N7.Blood from the Mouth: Happens when he's finally killed by Shepard.Averted in the game proper, where he's been augmented with Reaper tech, and it's still not badass enough to beat Shepard. Then, in Deception, manages to kill über-biotic Gillian Grayson with a shiv while injured. And then 6 turians, again with just a knife.

Badass Normal: No biotics, no cybernetics, and still manages to kill a krogan (who, remember, have redundant organ systems and an innate Desperation Attack) in a Bar Brawl with just a knife.Badass Baritone: Courtesy of Troy Baker.Backstab Backfire: How his boss fight ultimately ends.Arrogant Kung-Fu Guy: They don't get much more arrogant than Kai Leng.Certainly not the level of threat as the Reapers, Saren before, or his boss The Illusive Man for his influence. In reality, while Shepard despises him, s/he sees him as more of a cowardly roadblock and attack dog. Arch-Enemy: He considers himself to be Shepard's.His backstory is alluded to if you dig, but not in much detail. All There in the Manual: Most of his background is covered in the books, where playing just the game you would think he's just another baddie.He returns as part of the force that the Illusive Man sends against Shepard in the third game. A Cerberus assassin who had a run in with David Anderson during the events of Retribution and Deception.
