The Brick has unfortunately always been the 10th playable class in Team Fortress 2. His existence was alluded to by a developer of Team Fortress 2, as they noted that a 10th playable class would probably be some kind of wall character who gets in the way of the enemy, but this was before his presence was fully realized to be within our domain by the public. He is known to be a very dangerous person, and is not to be trusted under any circumstances. There is currently little known information about his motivations, or current whereabouts. If you see The Brick in person, do not approach him, and report to your nearest government entities.