Magic Voice is a female noncorporeal voice that lives in the Satellite of Love. She alerts the members of the crew as to how long it will be before Commercial Sign or Movie Sign. She often comments on the situations that Joel Robinson or Mike Nelson get into. Magic Voice appears to be a robot (or possibly the satellite's main computer), because in Manos: The Hands of Fate, Joel installs a chip in the bots and her. In Fire Maidens of Outer Space, she is menaced by Timmy. A host segment on The Atomic Brain feautured her search for love in other narration voices. At the end of Laserblast, she became pure energy along with the rest of the crew, despite being noncorporeal. She returned during the show's Sci-Fi Channel run and made brief appearances on the show from season 8-10.

She was voiced regularly by Mary Jo Pehl beginning in season 5, and first appeared on the show in 1992.