
Throughout the various Mortal Kombat games he was involved in, Sektor has grown into an ever more menacing mechanized warrior. He represents the closest thing to evil a cyborg can be, and combines traits of both a stealthy ninja and a ruthless killing machine fit for modern warfare. In contrast to his counterpart Cyrax, Sektor never bothered to rediscover his human side, and may be unable to. As far as this could be said about a cyborg, it is likely that he suffers from a form of insanity. He is capable of independent thought and action like Cyrax and Smoke; however, unlike the other two cyborgs, the only emotion Sektor really displays is anger.
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Making his debut in Mortal Kombat 3, Cyrax was one of the four cybernetic ninjas created by the Lin Kuei, in an effort to convert all members into unfeeling, cold-hearted, cybernetic assassins. He was assigned to hunt down the renegade, former Lin Kuei member Sub-Zero as designated unit LK-4D4. Of the four cyborgs, he has become the second to recover his humanity. This is due to the efforts made by Sonya Blade and Jax Briggs. He has currently allied with them as a token of his appreciation.
Reference-Omi