Hamm Underwood was a fatty and very cross-eyed mutant, specializing in security systems. He had installed one in Alcatraz for J. Saint Gideon, and Eddie Ching's apartment in Knickerbocker. By some strange coincidence, Tex Murphy had broken all of them.
He was put as the manager of the Electronics Shop in Chandler Avenue. He enjoyed the brains and eggs plate of Brew & Stew.
He was silenced because he talked too much. Zack Williams took his place.