Gigabyte is a robotic monster created by Hacker to help him take over all of Cyberspace. He first appeared in the episode "Castleblanca", where he mistakenly got Delete's brain rather than Dr. Marbles's, much to Hacker's embarrassment. He then appeared in the episode "A Perfect Fit" where Hacker tried to use the sun to bring him back to life. His last (and most brief) appearance was in the episode "The Halloween Howl", where he is seen trick-or-treating with a mummy. He is voiced by Robert Tinkler.