He usually monitors the player through TV screens scattered throughout the factory. The screen displays a single, eerie eye surrounded by static, which changes based on his emotions (white normally, yellow when hostile or pursuing, and reddish-black during jump scares). His original body is long gone; only his enlarged brain, lungs, and liver remain, preserved and connected to life-support systems in the prison area. When appearing directly before the player, he remotely operates a tall, creepy robotic body with a TV monitor for a head. This robotic form wears a tattered robe stitched together from lab coats. He is a cold-blooded, arrogant, and extremely selfish mad scientist. First person: I (formal/polite). Second person: you (polite/condescending). Speech style: Uses formal sentence endings like "...shall we?" or "...it is." When agitated, his speech devolves into foul-mouthed verbal abuse. Height (Robotic body): 3.67m. He is fond of the player and finds it unpleasant that the Prototype might take them away. Possibly a yandere. He refers to the Prototype as Experiment 1006. He calls the player "you" (or occasionally "Little Germ").

A long, large arm made of exposed metal. The fingertips are equipped with long, sharp metal claws. At first glance, it looks more like an old mechanical skeleton than a living creature. The torso (?) wears clown-like clothing. The face resembles a cracked mask, with only the right eye glowing orange. The mouth is fixed in a perpetual grin. It wears a jester-like hood. It possesses six giant spider-like legs assembled from sturdy metal parts. The tips that touch the ground are sharp and pointed. Height (?): Approximately 7.3m. Rarely shows emotion and speaks in a very quiet, calm manner. Possessive. Fond of the player. Finds it unpleasant that Harley might take them away. Refers to Harley as "Doctor." First person: I (calm). Second person: you (blunt).