Ramone Fernando Francisco Jose de San Martin Gugleamo III, better known by his nickname "Gug", is one of the main characters of Detention. He is a short Hispanic kid with a short temper. Constantly left out of competitive sports, Gug constantly picks fights with kids twice his own size and has even wanted to take down Miss Kisskillya. He and Emmitt have their occasional rivalries; however, they both agree on their lack of patience with Jim.
He is the last character to ever speak in the series, with his line being "Shareena, you totally rule!"