Bill (this is just a codename) is a paranormal investigator in the cartoon Invader Zim. He makes an appearance in "Career Day ", as the person who is supposed to be 'guiding' Dib on the path to his career. He is very paranoid, believing that ghosts, Bigfoot, and even dinosaurs are government conspiracies.
He's also appeared in "The Sad, Sad Tale of Chickenfoot".
