"The Voice" was the main antagonist of The Belko Experiment.
The Voice was responsible for trapping 80 people for an experiment of behavioral observation. After Mike Milch was the last survivor, he orders his guards to bring Mike and tell him everything, but after Mike kills the guards with explosives and uses a rifle to kill the other two scientists in the room, he walks over to the Voice, wounded from the explosives. The Voice attempts to plead for his life, but Mike uses the rifle to shoot him multiple times in the head, killing him once and for all.
His real name was never revealed.