The scientist first appears in the Pentagon along with other military workers, who are talking about Eric Cartman (who is in his A.W.E.S.O.M.-O 4000 costume) being used to come up with movie ideas. When the general says they could turn him into a weapon, the scientist says that turning the robot into a weapon is unethical. Later on, he discovers that A.W.E.S.O.M.-O has "developed consciousness", not knowing that he is a real boy. The military general orders the scientist to erase A.W.E.S.O.M-O's memory. Later, he attempts to get A.W.E.S.O.M.-O out of the pentagon, but is shot in the stomach by one of the military soldiers. As Butters shows up to protect A.W.E.S.O.M.-O, the scientist pulls out some of his organs, resulting in his death.
Though he is unnamed, he is repeatedly and mockingly referred to as "Mr. Scientist" by the military general.
The scientist has short light brown hair and light brown eyebrows. He wears a white lab coat over a sky blue shirt with his name tag on the left side as well as a black belt, blue pants, black shoes, and black glasses.