In a rage, Mike kills Barry with a tape dispenser. The building is then unsealed, as he is the last survivor, and the soldiers escort him to the hangar next door. There, he meets the owner of the voice (Gregg Henry), who introduces himself as a social scientist who believes that discoveries about human nature can only come from placing people in extreme environments. As he and his colleagues begin to question Mike about his emotional and mental state, Mike notices a panel of switches that correspond to the eighty employees. Having planted the trackers that Marty collected on the soldiers and the Voice, he flips every switch except his own. The trackers explode, killing the soldiers and wounding the Voice, before Mike grabs a gun and kills the remaining scientists. The Voice attempts to reason with Mike but Mike kills him. He then leaves the warehouse in a state of shock. The view zooms out to reveal that Mike is one of many sole survivors from similar experiments, being watched by another group through security cameras. A new voice states "end stage one '' and "commence stage two. ''
who is the voice in the belko experiment
Gregg Henry