Mitchell wore a gray jumpsuit and a gas mask. In addition, he wore a blue mining helmet equipped with a camera and headlamp. He also mistakenly wore Dr. Chamber's name tag. He was a bit absent-minded as he mixed up his outfit with a high-ranking scientist's. Despite this, he still tried to follow orders above his job level. Though he seemed dim, he was alert and intelligent, as seen when he sensed something was amiss the moment he re-entered the lab, lying about not being able to find Yeva.