biography.     Taken from the wiki. Alex Mercer came to life as the result of a vial of the Blacklight Virus assimilating into its creator, Dr. Alexander J. Mercer, its human host from whom he attained his identity. Dr. Mercer himself was the head of the Blacklight Project at Gentek in charge of engineering weaponized viruses from samples given to them by the government. In the subsequent experimentations, the samples exhibited curious behavior, including mimicry and retention of genetic information from infected hosts. In time, Dr. Mercer and his team found themselves developing a particularly virulent and potent virus codenamed "Blacklight."As Gentek became scrutinized by Congress leading to investigations that provoked Blackwatch to kill every single Gentek scientist who was involved in the Blacklight Project, Dr. Mercer attempted to escape. Due to his own paranoia, Dr. Mercer had foreseen the upcoming general purge thanks to Dana's assistance, who had mailed a laptop with classified documents to her as part of the plan to go AWOL. Dr. Mercer had also smuggled a vial of the Blacklight Virus out of quarantine and taken it with him as insurance should he got captured. Despite his efforts, the Blackwatch agents moved quickly to intercept him and ultimately cornered him in Penn Station. In a fit of frustration and rage, Dr. Mercer threw the vial to the floor, smashing it and unleashing a biological apocalypse. The virus rapidly infected the area. He was promptly shot by Blackwatch operatives before having his corpse taken back to Gentek in a body bag.Unknown to everyone involved, Dr. Mercer's decision to smuggle the vial of Blacklight Virus led to unforeseen consequences. As his body collapsed onto the viral sample, the virus was reconstructing Mercer's body, cell by cell; his biomass feeding the virus as it replicated the still-living matter it had infected, leading to the birth of the first and original prototype. The Prototype would name itself Alex Mercer after its very creator as he originally believed himself and Dr. Mercer were the same person before learning that was not the case.

  biography.     not only is kazar is a first generation collector, a rarity in a force composed mostly of clones of clones of clones, but they are also a prototype of sorts in the matter of biotic potential. collector foot-soldiers rarely possess the biotic powers of the protheans, but kazar is designed for the purpose of just that. their internals are interwoven with extensive biotic amplifiers.now freed from reaper influence via the leviathans, kazar intends to use their reaper-given strengths against their former master. they're militant and violent, but one of the best operatives the n7 special forces employs.

  personality.     to call kazar 'prickly' is a vast understatement. a recently freed thrall from the reapers, having spent fifty thousand years under their control, kazar does not suffer being told what to do, and does not appreciate being told what to do unless it has something to do with the reaper threat.

Not sure which of us got it worse.