Marshall is the person who has been occupying the second stall in the men's restroom on the Ground Floor. He is aware of the ongoing apocalypse, and has elected to remain hidden in the stall, watching things on his phone to pass the time. He can be spoken with by knocking on the door multiple times. If Nestor is encouraged to pay a visit to Rafta, becoming infected, his leg will flee downstairs and attack Marshall in the bathroom stall, fusing with his head and causing him to mutate.