Even though Glosserack was formally introduced in Mewberty, Glosserack made a couple of cameo appearances before hand. He makes a quick appearance in Monster Arm as Star looked for a way to fix Marco's arm, but he also appears in Star Comes To Earth. He is next to the King and Queen when they are looking at Star's magical rainbow, fire mess. He also appeared in SVTFOE computer games before he was formally introduced